Anemometer Hot Wire and Thermistor Sensing Method Data Logging No Humidity Sensing No Velocity (FPM) 40 to 3346 Velocity (MPS) 0.2 to 17 Velocity (MPH) 0.9 to 38 Velocity (KPH) 0.7 to 61.2 Velocity (Knots) 0.4 to 33 Air Velocity Accuracy +/-5 Percent + 5 Digits Air Volume 0 to 1 271 200 cfm Temp Range 32 Degrees to 122 Degrees F Probe Size 0.50 in dia. Cord Length 5.5 ft. Data Hold Yes Auto Power Off Yes Interface RS-232 Includes Telescoping Probe Batteries and Instructions