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0560 4053
testo 405 - Pocket-sized thermal anemometer
0560 4053
testo 405 - Pocket-sized thermal anemometer
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.
- Volume flow calculation of up to 99,990 m3/h
- Easily read data at any angle with rotating display
- Telescopic handle up to 300 mm
- Ideal for measurements in ducts
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.
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Temperature - NTC
Temperature - NTC | Measuring range -4.0° to 122.0 °F / -20 to +50 °C |
|---|---|
Accuracy ±0.9 °F / ±0.5 °C | |
Resolution 0.1 °F / 0.1 °C | |
Velocity - Thermal anemometer
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) |
|---|---|
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) | |
Resolution 1.97 fpm / 0.01 m/s | |
General technical data
General technical data | Weight 4 oz. (with batteries, without packaging) / 115 g (with batteries, without packaging) |
|---|---|
Dimensions 19 x 1 x 1 in. / 490 x 37 x 36 mm | |
Operating temperature 32.0° to 122.0 °F / 0 to +50 °C | |
Battery type 3 x AAA | |
Battery life Approx. 20 h | |
Display type LCD | |
Length probe shaft 11.811 in. / 300 mm | |
Diameter probe shaft 0.63 in. / 16 mm | |
Diameter probe shaft tip 0.472 in. / 12 mm | |
Storage temperature -4.0° to 158.0 °F / -20 to +70 °C | |
testo 405 thermal anemometer with permanently mounted telescope, including duct bracket, attachment clip, and batteries
Measurement of indoor air velocity
For workers to feel comfortable in their indoor working environments, "thermal comfort" has to prevail. The EN 13779 describes this as a state that prevails when people are satisfied with the air temperature, humidity, air movement and thermal radiation in a room, and require neither hotter, colder, nor drier or more humid indoor air.
The testo 405 is particularly well suited to measuring indoor flow velocity. Low air velocities, such as at draughty windows, can therefore be precisely located and measured extremely accurately.
Measurement in ventilation ducts
Observance of air flows in the ventilation duct is of utmost importance for the function of the ventilation and air conditioning system. If the air flows are smaller than intended, the removal of room loads (heating, cooling and substance loads) may not be ensured in certain circumstances. Therefore, the most accurate recording of air flows as possible is particularly important.
Our thermal anemometer testo 405 allows particularly cost-effective measurement of low air velocities. It enables the accurate and parallel measurement of air flow, volumetric flow and temperature. The extendible telescope allows measurement at a depth of up to 300 mm.
The display can be swivelled into various positions, enabling optimum measurement readout.
