Check the listing for details. Pro HVAC CFM Digital Anemometer Wind Speed Meter Air Flow Velometer Temp Tester. Condition: New. Listed at 44.28 USD. 856A Features: ➤【Air Velocity Measuring】Accurately measures wind speed in 5 units, wind temp in℃/℉ , wind flow in CFM CMM. Allows you to record 600 groups readings, Comes with portable case makes it easy to carry around. ➤【High Precision Wind Meter】Wind Speed Range: 0.7~100 mph (Accuracy: +/- 3%+0.2 rdg), display in 5 units: m/s, km/h, ft/min, knots, mph. Resolution: 0.001 mph.This digital anemometer can also accurately measure wind speed in Current/MAX/MIN. ➤【Wind Flow CFM Meter】Wind flow range: CFM 0-999900 ft3/min, Resolution: 001-100, Wind flow area 0.001-9999 ft2,it can even measures current/average/ 2/3max for air flow. Professional HVAC anemometer for CFM CMM measurement, CPU computer fans, air conditioner, air blower air velocity of dust pipe, tunnel,etc.