Extech AN100 Anemometer CFM/CMM

Thermo-Anemometer can simultaneously display of air flow or air velocity plus ambient temperature. Easy to set area dimensions cm2 are stored in the meter’s internal memory for the next power on. Complete with: 20 point average for air flow and 3% velocity accuracy via low friction 2.83 In. D 72 mm ball bearing vane wheel on 3.9 ft 120 cm cable. Comes complete with 9V battery protective rubber holster and case.