Pyle PMA90 Digital Anemometer / Thermometer for Air Velocity, Air Flow, Temperature

The PMA90 is a digital anemometer and thermometer from Pyle. This meter uses conventional angled vane arms with low-friction ball bearings and an NTC-type thermistor for accurate, speedy readings (1/sec). It measures air velocity, air flow, and temperature. Measures velocity in M/sec, Km/H, Ft/Min, MPH, and Knots. Measures air flow in CMM and CFM. The PMA90 automatically powers off after 20 minutes to save power. 9V battery required.