Features: 100% BRAND NEW! Measure wind speed and temperature. Large easy-to-read LCD display with backlight. Wind speed in Beaufort wind scale bar graph Wind chill indication Data hold function. High precision pressure sensor. Quick response external thermistor. Auto/manual power off. Temperature display in Celsius Fahrenheit. Wind speed range: 0-30m/s Wind temperature range: -10 - 45(14-113F) Current/max/average wind speed reading. Wind speed unit: m/s Km/h ft/min Knots mph. Powered by a 3V CR2032 battery. Specifications: Weight: 57g Size: 10.4 x 3.8 x 1.6 cm Air Velocity Range: 0 - 30m/s 0 - 90km/h 0 - 5860ft/min 0 - 65mph 0 - 55Knots Resolution: 0.1m/s 0.3km/h 19ft/min 0.2mph 0.2Knots Threshold: 0.1m/s 0.3km/h 39ft/min 0.2mph 0.1Knots Accuracy: +/- 5% Air Temperature Range: -10C ~ +45C 14F~ 113 F Resolution: 0.2F 0.36F Accuracy: 2F 3.6F Thermometer: NTC Thermometer Operating Temperature: -10C ~ +45C (14F~ 113 F ) Operating Humidity: Less than or equal to 90% RH Storage Temperature: -40C ~ +60C -40F ~140F Current Consumption: About 3mA Packing content: 1 x Digital Anemometer 1 x User Manual