This unique instrument combines the features of an anemometer and a psychrometer. Measures air speed, air volume, BTU British Thermal Units, air temperature, dew point, wet bulb and humidity. Excellent for HVAC, IAQ and environmental work. Auto ranging with air velocity in m/s or ft/s, air volume in CFM or m3/sec and temperature in degrees C or degrees F. Features min/max/avg, hold, auto power off, LCD backlight and a computer interface. The probe detaches for easy replacement and repair. In order to connect this model to a computer to stream data, you will need the USB Cable 840054 and Data Acquisition Software 840052. Comes in a hard carrying case complete with a probe, tripod mounting screw and 4 AAA batteries. Uses optional AC Adapter 840027. Air Speed Air Volume BTU British Thermal Units Air Temperature Dew Point Wet Bulb Humidity Meter Dimensions: 7 × 3 × 11⁄2 178 × 76 × 38 mmSensor Head Diameter: 3 76 mmWeight: 10 oz 283 g Specifications Range Resolution Accuracy Air Volume m3/sec 0 to 99999 0.1 0 to 99.991 1000 to 9999 ±2%rdg +0.2 m/s Air Volume CFM ft3/min Airspeed m/s 0.3 to 35 0.1 Airspeed ft/s 1 to 114 Air Temperature degrees C -20 to 60 degrees ±0.6 degrees C Air Temperature degrees F -4 to 140 degrees ±1 degrees F RH 0 to 100% ±3% @ 10 to 90% RH cal temp., otherwise ±5% Dew Point degrees C -68 to 70 degrees Dew Point degrees F -90 to 158 degrees Wet Bulb degrees C -22 to 70 degrees Wet Bulb degrees F -7.6 to 158 degrees Capacity BTU/H 0 to 99999 kw 0.1 0 to 99.91 1000 to 99999 Downloads Instruction Manual Product Brochure Comparison Chart Comparison Chart
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