Benetech GM816 handheld anemometer

Measurement items: Air velocity, Air temperature  Air velocity: 0~30m/s, 0~90km/h, 0~5860ft/min, 0~55knots, 0~65mph (± 5%)  Air temperature: -10~45º C, 14~113º F (± 2º C)  Resolution: 0.2º C, 0.2m/s Display: LCD  Sensor:  Air velocity sensor: Plastic impeller, magnetic induction  Temperature sensor: NTC thermometer  Low battery indication: Yes  Auto power shut off: 14 minutes without any operation  Backlight: 12 seconds active by press any key  MAX/MIN/AVG reading Packing: Blister+Card Power: CR2032 3.0V Dimension: 105*40*15mm Net weight: 52g (including battery)Click here for User Guide