Anemometer Rotating Vane and Thermistor Sensing Method Data Logging Yes Humidity Sensing No Velocity (FPM) 79 to 6 890 fpm Velocity (MPS) 0.4 to 30 mps Velocity (MPH) 0.9 to 78.3 mph Velocity (KPH) 1.4 to 126 kph Velocity (Knots) 0.8 to 68 knots Air Velocity Accuracy +/-2 Percent Case Color Black Temp Range 32 Degrees to 122 Degrees F Probe Size 2.80 in dia Cord Length 3 ft Data Hold Yes Auto Power Off Yes Includes Batteries Hard Carrying Case