Features 5 kinds of conversion of wind speed units: the air flow rate thermometer has 5 kinds of conversion of wind speed units: m/s, ft/m, mph, km/h, knots and 2 types of temperature unit conversion: ℃/℉. 【12 STAGE WIND SPEED DISPLAY】The digital anemometer has a 12 stage wind speed indicator, no complicated conversion of number value into windvane required, total wind speed display at MIN/MAX/AVG. Backlight: LCD wind speed meter with backlight, which allows you to read data even in insufficient light when you are out for fun. Resolution is 0.1 m/s, 0.3 km/h, 19 ft/min, 0.2 mph, 0.2 nodes Easy to carry: the size of the portable digital anemometer is about 145 x 72 x 35 mm / 5.85 x 2.83 x 1.38 inches and the weight is about 888 g. The wind speed meter is lightweight, small and easy to use. Wide range of applications: LCD wind speed meter is an ideal tool for measuring wind speed in households, offices, cars, air conditioners, exhaust fans, sailing boats, sailing, windsurfing, kites, sailing boats, surfing and fishing. Description: This digital anemometer is used to measure air speed and air temperature. The LCD screen shows the measurement value in MIN/MAX/AVG. It is widely used for air speed for home, office, car, air conditioning, exhaust fan, sailing boat, navigation etc. Features: 1. Conversion of 5 air speed units: m/s, ft/m, mph, km/h, knots; 2 air conversion of temperature unit: ℃/℉. 2. 12 Stage Air Speed Indicator - You don't have to make it complicated conversion from value to wind scale. 3. Backlit for easy reading in the dark. 4. Total air speed display at MIN/MAX/AVG. 5. Lightweight with small volume, easy and convenient to use. 6. Perfect tool for measuring air speed at home, office, car, air condition, exhaust fan, sailing boat, navigation, etc. Specifications: Air speed: Range: 0-45 m/s, 0-140 km/h, 0-8800 ft/min, 0-100 mph, 0-88 knots Resolution: 0.1 m/s, 0.3 km/h, 19 ft/min, 0.2 mph, 0.2 knots. Threshold: 0.3 m/s, 1 km/h, 60 ft/min, 0.7 mph, 0.6 knots. Air temperature: Range: 0-45℃, 32°F-113℉ Resolution: 0.2℃, 0.36℉ Accuracy: ±2℃, ±3.6℉. Operating temperature: -10 °C - 50 °C / 14 - 122 °F. Operating humidity: 40% RH - 85% RH. Storage temperature: -20 - 60 °C / -4 - 140 °F. Input current: 3 mA. Power supply: 1 x 9V 6F22 battery (not included). Product size: 145 x 72 x 35 mm / 5.85 x 2.83 x 1.38 inches. Weight: approx. 888 g. Package contents: 1 x digital anemometer (battery is not included). 1 x manual. 1 x plastic box. 1 x paint box. Note: 1. Due to the difference between monitors and lighting effects, the actual colour of the item may differ from the picture. Please note: Package List