HP-866B Portable High-Precision Digital Anemometer 0-30m/s Wind Speed Meter Wind Chill Temperature Tester with LCD Backlight Display Handheld Measure Tools Feature: -This portable anemometer is a practical measuring instrument that can measure wind speed and temperature; -Wind speed unit can be switched: m/s, km/h, ft/min, knots or mph; -Wind level and wind chill indicators; -Maximum, minimum and average measurement functions; -LCD display, backlight, easy to read. Specification: Wind speed range: 0-30m/s; 0-5860ft/min; 0-55knots; 0-90km/h; 0-65mph Resolution: 0.1m/s; 19ft/min; 0.2knots; 0.3km/h; 0.2mph Temperature range: -10 - 45°C; 14 - 113°F Thermometer: NTC thermometer Operating temperature: -10 - 45°C Relative humidity: <= 90% rh Power supply: 2 X 1.5V AAA batteries (not included) Product size: 165*85*38mm Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 X Anemometer 1 X Storage Bag 1 X Instruction