1Can perform accurate weather measurements in seconds, can test maximum wind speed, average wind speed. 2It is applicable to the wind speed of drone environment, sea work place, high-rise building environment, fan manufacturing industry, etc. 3The anemometer is ideal for weather enthusiasts or professionals to accurately measure wind speed. 4This handy sized anemometer with a rope are convenient to carry and protective cover for better protection. 5Featuring six - leaf blade design, it is more sensitive and accurate to measure. 6With five wind speed units to choose from, the HD screen with backlight is easier to measure.Condition: 100% NewItem Type: AnemometerMaterial: Plastic + ElectronicConsumption Current: About 3mAWind Speed Detection:Measurement Range: 0~30m/sResolution: 0.1Minimum Starting Wind Speed: 0.7Accuracy: 5%Wind Temperature Measurement:Measurement Range: -10~+45Resolution: 0.2Accuracy: 2Operating Temperature: -10~+45Operating Humidity: 90%RHStorage Temperature: -40~+60Temperature Sensor: NTC negative temperature coefficient resistorBattery: CR2032 3.0V (not included)Size: Approx. 12.4 x 4.8 x 1.9cm / 4.9 x 1.9 x 0.7inWeight: Approx. 107g / 3.8oz.w-e-text table td,.w-e-text table th,.wang-edit-text table td, .wang-edit-text table th{border: .5pt solid 000;};.w-e-text table,.wang-edit-text table{border: 1px solid 000 important;}1 x Anemometer1 x InstructionPlease allow 1-3cm error due to manual measurement. Thanks for your understanding.