Anemometer Hot Wire and Thermistor Sensing Method Data Logging Yes Humidity Sensing No Velocity (FPM) 40 to 3 940 fpm Velocity (MPS) 0.2 to 25 mps Velocity (MPH) 0.5 to 45 mph Velocity (KPH) 0.7 to 72 kph Velocity (Knots) 1 to 31 knots Air Velocity Accuracy +/-5 Percent Air Volume 0 to 1 907 000 cfm Temp Range 32 Degrees to 122 Degrees F Probe Size 0.47 in (12 mm) dia 7.05 ft (215 cm) L Cord Length 3.3 ft Data Hold Yes Auto Power Off Yes Interface RS-232