This product is a portable multi-functional anemometer, and it is suitable for measuring temperature, humidity, wind chill, dew point, wind speed, barometric pressure, altitude and illumination.

Because the measurement of altitude is influenced by barometric pressure and temperature, so the altitude values measured in different seasons and different climates are different, but in the same day and condition that, barometric pressure and temperature slightly vary, the altitude reading is, stable, so it can be used for measuring the altitude difference.

*Measurement items: Air velocity, Air temperature 
*Measurement range: 
----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: 104.3x57.8x19.9mm
*Net weight: 58.9g (including battery)