Ray-JrMALL Yellow Mini Handheld LCD Digital Anemometer Air Wind Speed Meter Tester Ideal tool for windsurfing, sailing, fishing, kite flying and mountaineering. Can also be used for industrial and home purpose such as measuring wind speed and temperature of CPU computer fans, air conditioners, air blower etc High precision pressure sensor. Wind temperature range: -10 - 45C (14-113F). Large easy-to-read LCD display with backlight.