Testo 417 Set 1 Vane Anemometer, 20m/s Max, Measures Air Velocity, Temperature, Volume Flow

The Testo compact vane anemometer was developed to make it as easy as possible for you to take measurements on air inlets and outlets of air conditioning and ventilation systems. The integrated 100 mm vane quickly ensures precise results. Time and point average values as well as the volume flow are automatically calculated in the instrument and shown on the display. This allows balanced residential ventilation systems to be adjusted especially efficiently.

Precise measurement of flow, volume flow and temperature
Timed and point mean value calculation
Operating temprature is -20 to +50 °C
Battery life is 50 hours