This is a handheld anemometer, which is made of reliable materials, and can be used for a long time. Widely used in aviation industry, oil work, environmental monitoring, air conditioning systems, ventilation systems and various fan production. High definition LCD backlight screen it can be displayed at the same time wind wind is very practical and simple, practical. Features -Color:Black -Material:Plastic -Size:10.00X4.50X3.00cm/3.93X1.77X1.18in -Wind measurement range: :0-30 /s/ Accuracy: ±5%/ Resolution:0.1/ :0.1 - measurement range: -10 - 45° C (14 - 113° F)/ Accuracy :±2 ° C(±3.6° F)/ Resolution:0.2 -Battery supply: 3. (not included) -Thermometer: NTC Thermometer -Operating : -10 - 45° C (14 - 113° F) -Operating humidity: less than 90%RH -Storage : -40 - 60° C (-40 to 140° F) - consumption: Approx. -This practical handheld anemometer is good for windsurfing, sailing, fishing, drone flying and mountaineering. - Easy one-handed design, you can keep this anemometer in your pocket. - Digital anemometer, providing higher measuring accuracy and less likely to break off by wind. - It comes with a storage, anti-slip design, protecting your anemometer nicely. - It not only can measure , but also can measure and humidity. Package list: 1 x anemometer