GENERAL DAF80MIN Anemometer, 160 to 2358 fpm. More details: Anemometer, Rotating Vane Sensing Method, Data Logging No, Humidity Sensing No, Velocity (FPM) 160 to 2358, Velocity (MPS) 0.8 to 12, Air Velocity Accuracy +/-2 Percent of Reading, Temp. Range 32 Degrees to 176 Degrees F, Probe Size 0.50 In. dia. x 23.60 In. L, Cord Length 5 ft., Data Hold No, Auto Power Off No, Interface RS-232, Includes Instructions, Battery, Hard Case and Probe