GM8902 Digital Anemometer tachometer Wind Speed Meter Air Flow Tester Air Temperature Meter Measuring 0~45m/s with USB Interface

Measuring air velocity/air/flow/air temperature, the meter finds wide application in the fields of heating, ventilation, meterology, agriculture, frozen storage, and featuring large LCD display and data reading.
Features:
Air Velocity/Air Flow/Temperature measurement.
Wing Speed Range: 0-45m/s.
Temperature Range: 0-45 degrees.
Air Flow Range: 0~999900m3/min
LCD Back Light.
Memory of 500 records.
USB Interface for data transportation.
Manual/Auto Power Off.
Wing Speed Unit Selection: m/s, Ft/min,Knots, Km/hr, Mph.
Max/Min/Average Value Reading.
Data Hold.
degrees/fahrenheit unit switch.
Wind chill indication.
Specifications:
Range of air velocity: 0.0~45 m/s, 0~140 km/hr, 0~8800 Ft/min, 0~88Knots, 0~100mph
Accuracy of air velocity: ±3%
Air flow measuring range: 0~999900m3/min, 0~999900ft3/min
Resolution: 0.1~100
Range of air temperature: 0~45degrees/32~113fahrenheit
Accuracy of air temperature: ±2degrees/±3.6fahrenheit
Resolution: 0.2degrees; 0.1m/s

General Characteristics:
Working temp.: Host: 0~50degrees/32~122fahrenheit, fan: 0~60degrees/32~140fahrenheit
Power Supply: 4 * 1.5VAAA battery (not included)
Item Size: 14 * 6.5 * 3.5cm / 5.5 * 2.7 * 1.4in
Item Weight: 219g / 7.7oz
Package Size: 26.7 * 20 * 6.4cm / 10.4 * 3.4 * 2.4in
Package Weight: 923.2g / 2.03lb
Package List:
1 * Digital Anemometer(1 * Fan, 1 * Host)
1 * USB Cable
1 * CD Software
1 * English Manual