Product Description
testo 405 - Pocket-sized thermal anemometer
Description
The extendible telescope (up to 300 mm) makes the thermal anemometer particularly suitable for flow measurements in ventilation ducts. The illuminated display can be swivelled into various positions, ensuring that the readings can be read comfortably. The duct bracket (included in the delivery) offers key practical advantages. You can use this to optimally position the telescope in the ventilation duct and obtain precise measurement results.
Since the testo 405 thermal anemometer measures particularly accurately in the range between 0 and 2 m/s, you can also use it to measure the air velocity in rooms. Low air velocities, at drafty windows for example, are quickly located and accurately measured using the anemometer.
Integrated sensor protection: When you are not using the testo 405 thermal anemometer, the rotating protective cap protects the flow sensor from mechanical stress.
Delivery Scope
testo 405 thermal anemometer with permanently mounted telescope, including duct bracket, attachment clip, and batteries
Your advantages
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Volume flow calculation of up to 99,990 m3/h
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Easily read data at any angle with rotating display
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Telescopic handle up to 300 mm
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Ideal for measurements in ducts
Use the testo 405 thermal anemometer to measure air velocity, volumetric flow, and air temperature. It is suitable for carrying out quick check measurements in ventilation ducts, and for measuring the air velocity in rooms, such as at drafty windows.
Technical data
Temperature - NTC
Measuring range |
-4.0° to 122.0 °F / -20 to +50 °C
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Accuracy |
±0.9 °F / ±0.5 °C
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Resolution |
0.1 °F / 0.1 °C
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Velocity - Thermal anemometer
Measuring range |
0 to 1969 fpm (32.0° to 122.0 °F) / 0 to 10 m/s (0 to +50 °C)
0 to 58852 CFM / 0 to 99990 m³/h
0 to 984 fpm (-4.0° to 32.0 °F) / 0 to 5 m/s (-20 to 0 °C)
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Accuracy |
±(59.1 fpm + 5 % of mv) (Remaining Range) / ±(0.3 m/s + 5 % of mv) (Remaining Range)
±(19.7 fpm + 5 % of mv) (0 to 394 fpm) / ±(0.1 m/s + 5 % of mv) (0 to 2 m/s)
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Resolution |
1.97 fpm / 0.01 m/s
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General technical data
Weight |
4 oz. (with batteries, without packaging) / 115 g (with batteries, without packaging)
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Dimensions |
19 x 1 x 1 in. / 490 x 37 x 36 mm
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Operating temperature |
32.0° to 122.0 °F / 0 to +50 °C
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Battery type |
3 x AAA
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Battery life |
Approx. 20 h
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Display type |
LCD
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Length probe shaft |
11.811 in. / 300 mm
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Diameter probe shaft |
0.63 in. / 16 mm
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Diameter probe shaft tip |
0.472 in. / 12 mm
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Storage temperature |
-4.0° to 158.0 °F / -20 to +70 °C
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Downloads
Product brochures
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Data sheet testo 405(pdf, 194.29 kB)
Operating instructions
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EU declaration of conformity testo 405(pdf, 33.27 kB)
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Instruction manual testo 405(pdf, 992.69 kB)