Quick view testo 440 - Vane kit with Bluetooth (Ø 3.9") Delivery Scope testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401) Vane probe (Ø 3.9") with Bluetooth, including temperature sensor (consisting of 3... MSRP: Now: $845.75 Add to Cart Compare Quick view testo 440 - Vane kit (Ø 0.63") Delivery Scope testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401) Vane probe (Ø 0.63") with fixed cable (length 5.6'), including telescope... MSRP: Now: $675.75 Add to Cart Compare Quick view testo 440 - Hot wire kit (Ø 0.35") Delivery Scope testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401) Hot wire probe (Ø 0.35") with fixed cable (length 5.6'), including... MSRP: Now: $637.50 Add to Cart Compare Quick view testo 540 - Light meter The testo 540 lux meter can be used to measure artificial and natural light in the workplace. The testo 540 lux meter: compact, easy to use, precise The testo 540 entry-level light meter is designed for carrying out spot checks... MSRP: Now: $187.00 Add to Cart Compare Quick view testo 545 - Digital Lux meter with App connection Illuminance is a decisive factor for productivity, well-being and health, especially in workplaces. Light sources that are too bright dazzle, while those that are too dark can lead to concentration problems and headaches. With... MSRP: Now: $493.00 Add to Cart Compare Quick view testo 535 - Digital CO2 measuring instrument with App connection For indoor air quality and comfort, the measurement of the carbon dioxide content in the indoor air is crucial. To obtain precise results quickly, you need a suitable measuring instrument. The compact CO2 measuring... MSRP: Now: $493.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol testo 552i wireless vacuum probe 2 x testo 115i wireless Bluetooth clamp thermometers Transport case testo Smart App (free... MSRP: Now: $615.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol 2 x testo 115i wireless Bluetooth clamp thermometers 2 x testo 605i wireless thermohygrometers Transport case testo Smart... MSRP: Now: $655.00 Add to Cart Compare Quick view Air flow grid - for supply air diffusers Use the air flow grid to carry out accurate measurements on laminar flow supply air outlets. Use in conjunction with a differential pressure measuring instrument (e.g. testo 420, testo 480 or testo 435-4) to calculate flow... MSRP: Now: $704.65 Add to Cart Compare Quick view Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe Low pressure probe, refrigerant-proof stainless steel, without cable MSRP: Now: $814.00 Add to Cart Compare Quick view Oil pressure probe for checking oil level in the compressor - Oil pressure probe In order to check the lubricating oil pressure in the refrigeration compressor, simply attach the oil pressure probe to the appropriate measuring instrument, screw the connection onto the compressor's oil measurement fittings and... MSRP: Now: $449.00 Add to Cart Compare Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view testo 440 - Vane kit (Ø 0.63") Delivery Scope testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401) Vane probe (Ø 0.63") with fixed cable (length 5.6'), including telescope... MSRP: Now: $675.75 Add to Cart Compare Quick view testo 440 - Hot wire kit (Ø 0.35") Delivery Scope testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401) Hot wire probe (Ø 0.35") with fixed cable (length 5.6'), including... MSRP: Now: $637.50 Add to Cart Compare Quick view testo 540 - Light meter The testo 540 lux meter can be used to measure artificial and natural light in the workplace. The testo 540 lux meter: compact, easy to use, precise The testo 540 entry-level light meter is designed for carrying out spot checks... MSRP: Now: $187.00 Add to Cart Compare Quick view testo 545 - Digital Lux meter with App connection Illuminance is a decisive factor for productivity, well-being and health, especially in workplaces. Light sources that are too bright dazzle, while those that are too dark can lead to concentration problems and headaches. With... MSRP: Now: $493.00 Add to Cart Compare Quick view testo 535 - Digital CO2 measuring instrument with App connection For indoor air quality and comfort, the measurement of the carbon dioxide content in the indoor air is crucial. To obtain precise results quickly, you need a suitable measuring instrument. The compact CO2 measuring... MSRP: Now: $493.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol testo 552i wireless vacuum probe 2 x testo 115i wireless Bluetooth clamp thermometers Transport case testo Smart App (free... MSRP: Now: $615.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol 2 x testo 115i wireless Bluetooth clamp thermometers 2 x testo 605i wireless thermohygrometers Transport case testo Smart... MSRP: Now: $655.00 Add to Cart Compare Quick view Air flow grid - for supply air diffusers Use the air flow grid to carry out accurate measurements on laminar flow supply air outlets. Use in conjunction with a differential pressure measuring instrument (e.g. testo 420, testo 480 or testo 435-4) to calculate flow... MSRP: Now: $704.65 Add to Cart Compare Quick view Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe Low pressure probe, refrigerant-proof stainless steel, without cable MSRP: Now: $814.00 Add to Cart Compare Quick view Oil pressure probe for checking oil level in the compressor - Oil pressure probe In order to check the lubricating oil pressure in the refrigeration compressor, simply attach the oil pressure probe to the appropriate measuring instrument, screw the connection onto the compressor's oil measurement fittings and... MSRP: Now: $449.00 Add to Cart Compare Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view testo 440 - Hot wire kit (Ø 0.35") Delivery Scope testo 440 air velocity and IAQ measuring instrument, 3 AA batteries, USB cable, and calibration protocol (0560 4401) Hot wire probe (Ø 0.35") with fixed cable (length 5.6'), including... MSRP: Now: $637.50 Add to Cart Compare Quick view testo 540 - Light meter The testo 540 lux meter can be used to measure artificial and natural light in the workplace. The testo 540 lux meter: compact, easy to use, precise The testo 540 entry-level light meter is designed for carrying out spot checks... MSRP: Now: $187.00 Add to Cart Compare Quick view testo 545 - Digital Lux meter with App connection Illuminance is a decisive factor for productivity, well-being and health, especially in workplaces. Light sources that are too bright dazzle, while those that are too dark can lead to concentration problems and headaches. With... MSRP: Now: $493.00 Add to Cart Compare Quick view testo 535 - Digital CO2 measuring instrument with App connection For indoor air quality and comfort, the measurement of the carbon dioxide content in the indoor air is crucial. To obtain precise results quickly, you need a suitable measuring instrument. The compact CO2 measuring... MSRP: Now: $493.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol testo 552i wireless vacuum probe 2 x testo 115i wireless Bluetooth clamp thermometers Transport case testo Smart App (free... MSRP: Now: $615.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol 2 x testo 115i wireless Bluetooth clamp thermometers 2 x testo 605i wireless thermohygrometers Transport case testo Smart... MSRP: Now: $655.00 Add to Cart Compare Quick view Air flow grid - for supply air diffusers Use the air flow grid to carry out accurate measurements on laminar flow supply air outlets. Use in conjunction with a differential pressure measuring instrument (e.g. testo 420, testo 480 or testo 435-4) to calculate flow... MSRP: Now: $704.65 Add to Cart Compare Quick view Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe Low pressure probe, refrigerant-proof stainless steel, without cable MSRP: Now: $814.00 Add to Cart Compare Quick view Oil pressure probe for checking oil level in the compressor - Oil pressure probe In order to check the lubricating oil pressure in the refrigeration compressor, simply attach the oil pressure probe to the appropriate measuring instrument, screw the connection onto the compressor's oil measurement fittings and... MSRP: Now: $449.00 Add to Cart Compare Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view testo 540 - Light meter The testo 540 lux meter can be used to measure artificial and natural light in the workplace. The testo 540 lux meter: compact, easy to use, precise The testo 540 entry-level light meter is designed for carrying out spot checks... MSRP: Now: $187.00 Add to Cart Compare Quick view testo 545 - Digital Lux meter with App connection Illuminance is a decisive factor for productivity, well-being and health, especially in workplaces. Light sources that are too bright dazzle, while those that are too dark can lead to concentration problems and headaches. With... MSRP: Now: $493.00 Add to Cart Compare Quick view testo 535 - Digital CO2 measuring instrument with App connection For indoor air quality and comfort, the measurement of the carbon dioxide content in the indoor air is crucial. To obtain precise results quickly, you need a suitable measuring instrument. The compact CO2 measuring... MSRP: Now: $493.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol testo 552i wireless vacuum probe 2 x testo 115i wireless Bluetooth clamp thermometers Transport case testo Smart App (free... MSRP: Now: $615.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol 2 x testo 115i wireless Bluetooth clamp thermometers 2 x testo 605i wireless thermohygrometers Transport case testo Smart... MSRP: Now: $655.00 Add to Cart Compare Quick view Air flow grid - for supply air diffusers Use the air flow grid to carry out accurate measurements on laminar flow supply air outlets. Use in conjunction with a differential pressure measuring instrument (e.g. testo 420, testo 480 or testo 435-4) to calculate flow... MSRP: Now: $704.65 Add to Cart Compare Quick view Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe Low pressure probe, refrigerant-proof stainless steel, without cable MSRP: Now: $814.00 Add to Cart Compare Quick view Oil pressure probe for checking oil level in the compressor - Oil pressure probe In order to check the lubricating oil pressure in the refrigeration compressor, simply attach the oil pressure probe to the appropriate measuring instrument, screw the connection onto the compressor's oil measurement fittings and... MSRP: Now: $449.00 Add to Cart Compare Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view testo 545 - Digital Lux meter with App connection Illuminance is a decisive factor for productivity, well-being and health, especially in workplaces. Light sources that are too bright dazzle, while those that are too dark can lead to concentration problems and headaches. With... MSRP: Now: $493.00 Add to Cart Compare Quick view testo 535 - Digital CO2 measuring instrument with App connection For indoor air quality and comfort, the measurement of the carbon dioxide content in the indoor air is crucial. To obtain precise results quickly, you need a suitable measuring instrument. The compact CO2 measuring... MSRP: Now: $493.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol testo 552i wireless vacuum probe 2 x testo 115i wireless Bluetooth clamp thermometers Transport case testo Smart App (free... MSRP: Now: $615.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol 2 x testo 115i wireless Bluetooth clamp thermometers 2 x testo 605i wireless thermohygrometers Transport case testo Smart... MSRP: Now: $655.00 Add to Cart Compare Quick view Air flow grid - for supply air diffusers Use the air flow grid to carry out accurate measurements on laminar flow supply air outlets. Use in conjunction with a differential pressure measuring instrument (e.g. testo 420, testo 480 or testo 435-4) to calculate flow... MSRP: Now: $704.65 Add to Cart Compare Quick view Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe Low pressure probe, refrigerant-proof stainless steel, without cable MSRP: Now: $814.00 Add to Cart Compare Quick view Oil pressure probe for checking oil level in the compressor - Oil pressure probe In order to check the lubricating oil pressure in the refrigeration compressor, simply attach the oil pressure probe to the appropriate measuring instrument, screw the connection onto the compressor's oil measurement fittings and... MSRP: Now: $449.00 Add to Cart Compare Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view testo 535 - Digital CO2 measuring instrument with App connection For indoor air quality and comfort, the measurement of the carbon dioxide content in the indoor air is crucial. To obtain precise results quickly, you need a suitable measuring instrument. The compact CO2 measuring... MSRP: Now: $493.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol testo 552i wireless vacuum probe 2 x testo 115i wireless Bluetooth clamp thermometers Transport case testo Smart App (free... MSRP: Now: $615.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol 2 x testo 115i wireless Bluetooth clamp thermometers 2 x testo 605i wireless thermohygrometers Transport case testo Smart... MSRP: Now: $655.00 Add to Cart Compare Quick view Air flow grid - for supply air diffusers Use the air flow grid to carry out accurate measurements on laminar flow supply air outlets. Use in conjunction with a differential pressure measuring instrument (e.g. testo 420, testo 480 or testo 435-4) to calculate flow... MSRP: Now: $704.65 Add to Cart Compare Quick view Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe Low pressure probe, refrigerant-proof stainless steel, without cable MSRP: Now: $814.00 Add to Cart Compare Quick view Oil pressure probe for checking oil level in the compressor - Oil pressure probe In order to check the lubricating oil pressure in the refrigeration compressor, simply attach the oil pressure probe to the appropriate measuring instrument, screw the connection onto the compressor's oil measurement fittings and... MSRP: Now: $449.00 Add to Cart Compare Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol testo 552i wireless vacuum probe 2 x testo 115i wireless Bluetooth clamp thermometers Transport case testo Smart App (free... MSRP: Now: $615.00 Add to Cart Compare Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol 2 x testo 115i wireless Bluetooth clamp thermometers 2 x testo 605i wireless thermohygrometers Transport case testo Smart... MSRP: Now: $655.00 Add to Cart Compare Quick view Air flow grid - for supply air diffusers Use the air flow grid to carry out accurate measurements on laminar flow supply air outlets. Use in conjunction with a differential pressure measuring instrument (e.g. testo 420, testo 480 or testo 435-4) to calculate flow... MSRP: Now: $704.65 Add to Cart Compare Quick view Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe Low pressure probe, refrigerant-proof stainless steel, without cable MSRP: Now: $814.00 Add to Cart Compare Quick view Oil pressure probe for checking oil level in the compressor - Oil pressure probe In order to check the lubricating oil pressure in the refrigeration compressor, simply attach the oil pressure probe to the appropriate measuring instrument, screw the connection onto the compressor's oil measurement fittings and... MSRP: Now: $449.00 Add to Cart Compare Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers Delivery Scope testo 550i digital 2-way manifold including batteries (3 x AAA) and calibration protocol 2 x testo 115i wireless Bluetooth clamp thermometers 2 x testo 605i wireless thermohygrometers Transport case testo Smart... MSRP: Now: $655.00 Add to Cart Compare Quick view Air flow grid - for supply air diffusers Use the air flow grid to carry out accurate measurements on laminar flow supply air outlets. Use in conjunction with a differential pressure measuring instrument (e.g. testo 420, testo 480 or testo 435-4) to calculate flow... MSRP: Now: $704.65 Add to Cart Compare Quick view Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe Low pressure probe, refrigerant-proof stainless steel, without cable MSRP: Now: $814.00 Add to Cart Compare Quick view Oil pressure probe for checking oil level in the compressor - Oil pressure probe In order to check the lubricating oil pressure in the refrigeration compressor, simply attach the oil pressure probe to the appropriate measuring instrument, screw the connection onto the compressor's oil measurement fittings and... MSRP: Now: $449.00 Add to Cart Compare Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Air flow grid - for supply air diffusers Use the air flow grid to carry out accurate measurements on laminar flow supply air outlets. Use in conjunction with a differential pressure measuring instrument (e.g. testo 420, testo 480 or testo 435-4) to calculate flow... MSRP: Now: $704.65 Add to Cart Compare Quick view Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe Low pressure probe, refrigerant-proof stainless steel, without cable MSRP: Now: $814.00 Add to Cart Compare Quick view Oil pressure probe for checking oil level in the compressor - Oil pressure probe In order to check the lubricating oil pressure in the refrigeration compressor, simply attach the oil pressure probe to the appropriate measuring instrument, screw the connection onto the compressor's oil measurement fittings and... MSRP: Now: $449.00 Add to Cart Compare Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe Low pressure probe, refrigerant-proof stainless steel, without cable MSRP: Now: $814.00 Add to Cart Compare Quick view Oil pressure probe for checking oil level in the compressor - Oil pressure probe In order to check the lubricating oil pressure in the refrigeration compressor, simply attach the oil pressure probe to the appropriate measuring instrument, screw the connection onto the compressor's oil measurement fittings and... MSRP: Now: $449.00 Add to Cart Compare Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Oil pressure probe for checking oil level in the compressor - Oil pressure probe In order to check the lubricating oil pressure in the refrigeration compressor, simply attach the oil pressure probe to the appropriate measuring instrument, screw the connection onto the compressor's oil measurement fittings and... MSRP: Now: $449.00 Add to Cart Compare Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale Fully automatic and precise charging of refrigeration systems, ductless mini-splits, and heat pumps: The testo 560i Intelligent Valve makes it possible - with the testo 560i Digital Refrigerant Scale (available separately), a testo... MSRP: Now: $244.00 Add to Cart Compare Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo testo 440 - Vane kit with Bluetooth (Ø 3.9") MSRP: Now: $845.75 Add to Cart Compare Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo testo 440 - Vane kit (Ø 0.63") MSRP: Now: $675.75 Add to Cart Compare Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo testo 440 - Hot wire kit (Ø 0.35") MSRP: Now: $637.50 Add to Cart Compare Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo testo 540 - Light meter MSRP: Now: $187.00 Add to Cart Compare Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo testo 545 - Digital Lux meter with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo testo 535 - Digital CO2 measuring instrument with App connection MSRP: Now: $493.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless vacuum and wireless clamp temperature probes (NTC) MSRP: Now: $615.00 Add to Cart Compare Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC) and wireless thermohygrometers MSRP: Now: $655.00 Add to Cart Compare Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo Air flow grid - for supply air diffusers MSRP: Now: $704.65 Add to Cart Compare Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo Low pressure probe, refrigerant-proof stainless steel, witho... - Low pressure probe MSRP: Now: $814.00 Add to Cart Compare Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo Oil pressure probe for checking oil level in the compressor - Oil pressure probe MSRP: Now: $449.00 Add to Cart Compare Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected × OK
Quick view Testo Intelligent Valve with Bluetooth - for testo 560i Digital Refrigerant Scale MSRP: Now: $244.00 Add to Cart Compare Previous 16 17 18 19 20 21 22 23 24 25 26 Next Previous 16 17 18 19 20 21 22 23 24 25 26 Next Compare Selected