Item Type: Digital Anemometer Material: ABS Model: 8907 Battery: 1.5V 4xAAA (not included) Uses: Flying kites, aviation planes, drones, sailing, fishing, hiking, shooting, etc. Basic parameters: 1. Wind speed measurement range: UnitWind Speed RangeResolutionLowest Starting PointAccuracy m/s0.0~45.00.010.33%0.1 Ft/min0.0~88000.01/0.1/1603%20 Knots0.0~88.00.010.63%0.2 Km/h0.0~140.00.0113%0.4 Mph0.0~1000.010.73%0.2 2. Air volume measurement range: CFM0-999900ft^3/min CMM0-999900m^3/min UnitRANGERESOLUTIONAREA CFM(FT^3/MIN)0-9999000.001-1000.001-9999ft^2 CMM(M^3/MIN)0-9999000.001-1000.001-9999m^2 3. Unit conversion: m/sFt/minKnotsKm/hMph 1m/s1196.871.9443.60 2.24 1ft/min0.0050810.009870.018290.01138 1knots0.5144101.2711.85191.1523 1km/h0.277854.690.5410.6222 1mph0.446487.890.86791.60711 4. Wind temperature: (1) Temperature measurement range UnitGearResolutionAccuracy 0~450.11.0 32~1130.181.8 (2) Humidity measurement range UnitMinimum/MaximumResolutionAccuracyTest conditions %RH10~900.15%90%RH non-condensing 5. Working current: UnitDESCRIPTIONMinimum/MaximumTYPTest conditions mAWorking current 115~2018Backlight is off mAWorking current 220~2523Backlight is on VLow battery indicator3.5~4.54 uAshutdown current0~85 6. Working environment: Temperature0~50 (32~122) Humidity40~80%RH 7. Storage environment: Temperature -40~60 (-40~140) Humidity80%RH 1It is easy to use and includes a USB data cable, which can be connected to a PC via USB to store and analyze data. 2Digital anemometer can measure wind speed, airflow and temperature range, highly sensitive and accurate measurement to provide rapid measurement for analyzing serious environmental conditions. 3With wind speed, temperature, wind flowing, data retention, data recording: 600 groups, / selection, 5 units of measuring wind speed: m/s, km/h, ft/min, knots, and miles. 4Use safe and secure, data retention support, automatic shutdown and date retention functions, data will not be lost. 5Durable, using high quality ABS material, not easy to damage, long service life, can be used for a long time. 1 x Anemometer(Battery Not Included) 1 x USB Data Cable 1 x Wind Speed Sensor 1 x Manual 1 x Tool Box