Specification: 100% Brand New and High Quality Measure wind speed and temperature. High precision pressure sensor. Quick response, external thermistor. Wind speed range: 0-30m/s. Wind speed unit: m/s, Km/h, ft/min, Knots, mph. Current/max/average wind speed reading. Temperature display in °C/°F Wind temperature range: -10 - 45°C (14-113°F) Large easy-to-read LCD display with backlight. Data hold function. Auto/manual power off. Powered by a 3V CR2032 battery. Specifications: Air Velocity: Range: 0 - 30m/s Air Temperature: Range-10°C~45°C Resolution: 0.1m/s Thermometer: NTC Thermometer Operating Temperature: -10°C~45°C Operating Humidity: less than or equal to 90%RH Weight: 106g Package Included: 1 x Digital Wind Speed Scale Gauge Meter Anemometer NTC Thermometer Meter GM8908