Compact Thermal Anemometer Testo 425

 Product Description

In order to establish whether an air conditioning or ventilation system is functioning properly, among other things you need to check the flow speed or the volumetric flow in the ventilation duct. If the air flow velocity is too low, the room loads are not correctly discharged and optimum room air quality can no longer be guaranteed.

testo 425 thermal anemometer for quick, easy flow measurement

The testo 425 thermal anemometer enables quick spot measurements in ventilation ducts. It records the flow speed, calculates the volumetric flow and also measures the temperature. With a measuring range of 0 to +20 m/s, the anemometer is particularly well suited to low air flow velocity.
Temperature - NTC

Measuring range

-20 to +70 °C

Accuracy

±0.5 °C (0 to +60 °C)

±0.7 °C (Remaining Range)

Resolution

0.1 °C
Velocity -Thermal anemometer

Measuring range

0 to +20 m/s

Accuracy

±(0.03 m/s + 5 % of mv)

Resolution

0.01 m/s
General technical data

Dimensions

182 x 64 x 40 mm

Operating temperature

-20 to +50 °C

Housing

ABS

Battery type

9V block battery, 6F22

Battery life

20 h

Storage temperature

-40 to +70 °C

Weight

285g