Anemometer Hot Wire and Thermistor Sensing Method Data Logging No Humidity Sensing No Velocity (FPM) 0 to 4 000 fpm Velocity (MPS) 0 to 20 mps Air Velocity Accuracy +/-5 Percent Temp Range 0 Degrees to 200 Degrees F Probe Size 0.28 in Dia 40 in Telescoping Cord Length 3.3 ft Data Hold No Auto Power Off Yes Calibration Certificate NIST Includes Batteries Carrying Case