![testo anemometer testo anemometer](https://static-int.testo.com/media/49/57/1500e425fedb/testo_417_p_in_vel_003204_MRH_with_case_master.jpg)
The telescope can be extended to a length of up to 820 mm and has a probe head diameter of 7.5 mm.As well as flow speed, would you also like to detect the volumetric flow on your air conditioning or ventilation system? This is no problem for the testo 425 thermal anemometer. With a measuring range of 0 to +20 m/s, the anemometer is particularly well suited to low air flow velocity.The thermal anemometer features a telescopic flow probe.
![testo anemometer testo anemometer](https://cdn.myshoptet.com/usr/www.protechnika.sk/user/shop/big/637-3_testo-425-anemometer.jpg)
It records the flow speed, calculates the volumetric flow and also measures the temperature. The testo 425 thermal anemometer enables quick spot measurements in ventilation ducts. 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.
![testo anemometer testo anemometer](https://www.aura-nord.com/bilder/produkte/gross/testo-417-Fluegelrad-Anemometer-Set.jpg)
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. The testo 425 thermal anemometer measures the flow speed and automatically calculates the volumetric flow. If the air flow velocity and volumetric flow are not set correctly, the room air quality may suffer. The functional testing of ventilation and air conditioning systems includes monitoring the flow speed in ventilation ducts.