The testo 417 rotating vane anemometer has a 4 inch vane, allowing for precise readings of air velocity, CFM, and temperature on its easy to read display. By inputting duct measurements into the 417, volume flow calculations can automatically be displayed. With the capability of quickly switching between air velocity and temperature measurements, using the testo 417 air flow meter is a breeze. Resolution of 0.01 fpm ensures accurate readings. Quality design and construction for dependable use day after day. Auto-off function saves battery life. Timed average calculations ensure accurate readings when encountering eddies
testo 417 vane anemometer with integrated 100 mm vane, calibration protocol, and battery.