Features: Handheld Anemometer: Design to measure wind temperature, wind speed, air flow meter. Compact & lightweight, easy to carry.Best gift for Windsurfing Kite Flying Sailing Surfing Fishing. Wind Speed Gauge: Wind speed in Beaufort wind scale bar graph.High precision pressure sensor.Air Velocity Range: 0-30m/s(Wind speed unit: m/s, Km/h, ft/min, Knots, mph). Current/max/average 3 modes wind speed reading to choose from. Wind Temperature Range: -10 - 45℃ (14-113℉);Wind chill indication.Quick response, external thermistor.Operating Temperature: -10~45℃ (14~113F)， Operating Humidity: less than or equal to 90%RH. Large easy-to-read LCD display with backlight makes it easier to read in dark conditions.Auto/ Manual Power Off. Handheld Anemometer is ideal for outdoor activities, also ideal for education as Wind speed is displayed on a Beaufort wind scale bar graff, as well as in units, while temperature is displayed in ℃/F after taking into account wind chill.  Specifications: Do micro spot measurements Mini and light weight Detachable protective case Simultaneous measure and display wind speed & temperature Digital Thermometer with range -10 ~ 45 °C (14 ~ 113 °F) Fast Air Speed measure range: 0 ~ 30 m/s (or 108 km/h if converted to kilometers per hour) Multiple SI units: m/s, km/h, fpm, mph, or knots Wind speed is also displayed in a Beaufort wind scale bar graph Display options in wind speed mode are current wind speed, maximum wind speed since power-on, and average wind speed since power-on Wind chill is displayed in the selected temperature unit Switchable between °C or °F Built-in rotating vane sensor and Backlight with auto-off Case is weather resistant (but not submersible) Ultra-light impeller is mounted in jewel (sapphire) bearing for precision, wide range of speeds and low startup speed Guaranteed quick response & accurate readings, no guessing errors Auto/Manual power-off with low battery warning Detachable neck lanyard  Powered by 1 CR2032 (3V) lithium battery (Included) With ISO9001 and UKAS approval With CE marking, approved by European Directives for health & safety requirements  Measurement units & parameters Air Speed/Velocity: m/s, km/h, ft/min, knots, mph Air Temperature: °C & °F Special Functions Wind Speed/Velocity: Current (Cu); Maximum (MAX) and Average (AVG) Package List: 1 x Thermo-Anemometer 1 x Detachable Protective Case 1x 3V CR2032 Battery 1 x Lanyard 1 x Instruction Manual Notice: 1.The actual color of the project may be slightly different from the picture displayed on the website due to many factors such as the brightness of the display and the brightness of the light. I sincerely hope you can understand. 2.The size is manually measured, and there may be an error of 0.2-0.5cm, which is a normal phenomenon.