Pro'skit MT-4615 Multifunction Anemometer Air Volume Tester Anemometer

range0.840m/saccuracy 0.8030.00 m/s, 1.40108.00 km/h, 1.3098.50 ft/s, 0.8058.30 knots, 0.9067.20 mil/h, 785900 ft/m, (2.0% + 50D) 30.0040.00 m/s, 108.0144.0 km/h, 98.50131.20 ft/s, 58.3077.70 knots, 67.2090.00 mil/h, 59007874 ft/m (Reference) Resolving power0.01m/s, 0.01km/h, 0.01 ft/s, 0.01knots, 0.01mile/h, 1ft/mMeasuring unit Wind speed: m/s, km/h, mil/h, ft/m, ft/s, knots Air volume: CMS (m3/s), CMM m3/min, CFM (ft /min) 3040m/s for reference only. Sampling time0.4sAutomatic shutdown10 minutes (adjustable)Low battery indicator<7VOperating environment085%RH, 0 C40 C (no condensation)Fan environment095%RH, -20 C80 C (no condensation)Storage environment080%RH, -20 C80 C (no condensation)AltitudeUp to 2000mPower Supply9V 6F22 (excluding batteries)weight154 g (excluding battery)size170 x 85 x 40mm Measuring air velocity and air volume Large LCD backlight for easy reading even in dark area Variety of units to choose from. Extra functions: Max./Min. valueLow battery indicationAuto power offDate hold