APPLICATION       Measuring volumetric flow rates or flow velocities in ducts     Measuring the temperature and humidity of flows     HVAC system performance     FEATURES       Fast response.     Telescoping hot wire probe.     Air flow measure: CMM、CFM.     Air velocity measurement: m/s, km/hr, ft/min, MPH, Knots & build in temperature ºC / ºF, humidity RH.     Large LCD display with backlight.     Min/Max/Avg & 2/3Vmax function.     Data Hold function.     With USB interface supply power.           Battery Life indicator.     Adjustable auto power off timer.     Air velocity compensation in atmospheric pressure.     Tilt Stand.   SPECIFICATIONS   Velocity Probe Range:         0 to 25 m/s(0 to 5000 ft/min) 0 to 999900 m3/min(ft3/min) -20 ºC ~60 ºC (-4 ºF ~140 ºC) 0~100%RH Resolution:                           0.01 m/s(1 ft/min) 0.001 m3/min(ft3/min) 0.1 ºC /ºF 0.1%RH Accuracy:                              (at 23 ºC ±  5 ºC <80%RH) ±3% of reading ± 1%FS (0 to 20 m/s) ±5% of reading ± 1%FS (20 to 25...