Product Description material: plastic Dimensions: 104.3 x 57.8 x 19.9 mm Measurement items: wind speed/wind temperature Measuring range: Wind speed: 0~30 meters/second, 1.4~90 kilometers/hour, 0~5860 feet/minute, 0~55 nautical miles/hour, 0~65 miles/hour (accuracy: 5%) Wind temperature: -10~45o C, 14~113o F (accuracy: 2o C) Resolution: 0.2o C, 0.2m/s Power supply: CR2032 3.0V Color: black+yellow Quantity: 1 pcs Package content: 1 pcs * Digital (with battery) 1. STEADY WIND SPEED MEASUREMENT & HIGH ACCURACYwind speed range and accuracy of wind speed. Battery IS Included. 2 .MULTIFUNCTIONAL ANEMOMETER wind speed, temperature and wind chill display in one lcd. handheld digital measure in 5 unitsm/sKm/hft/minmph. temperature measuring units: c / f 3. MORE INTELLIGENT & PORTABLELCD backlight. display (12 seconds active by press any key). auto power shut off: 14 minutes without any operation. low battery indication. handy palm sized, you can keep it in pocket. 4. MORE EXTRA SPECIFICATIONS THAN OTHERSdata hold function: through the built-in temperature regulator to adjust c/f temperature, record and recall max/min/average/current function. and come with a yellow protective case and wrist strap. 5. Suitable for different purposes: Our is ideal for home purpose such as measuring wind speed, air blower, temperature of CPU computer fans, and also can be used for windsurfing, sailing, fishing, kite flying and mountaineering. Suitable for power industry, steel industry, petrifaction industry, manufacturing industry, etc..