This weather device is an ideal tool for windsurfing, sailing, and kite flying. You can also use it for industrial and home purposes such as measuring speed and temperature of CPU computer fans, air-conditioners, airflow over the roof or walls. Features: Measure and display Air Velocity & Temperature Wind speed is also displayed in a Beaufort wind scale bar graph Display options in wind speed mode Wind chill is displayed in the selected temperature unit Built-in rotating vane sensor With backlight Auto/Manual power-off Low battery warning Specifications: Measurement units & parameters Air Speed/Velocity: m/s, km/h, ft/min, knots, mph Air Temperature: °C & °F Special Functions Wind Speed/Velocity: Current (Cu), Maximum (MAX), Minimum (MIN) and Average (AVG) Backlight Range Resolution Threshold Accuracy AIR VELOCITY m/s (meters per sec) 0 ~ 45 m/s 0.1 m/s 0.3 m/s ±3% ± 0.1 dgts ft/min (feet per minute) 0 ~ 8800 ft/min 19 ft/min 60 ft/min ±3% ± 10 dgts Knots (nautical MPH) 0 ~ 88 knots 0.2 knots 0.6 knots ±3% ± 0.1 dgts Km/h (kilometers per hour) 0 ~ 140 km/h 0.3 km/h 1 km/h ±3% ± 0.1 dgts mph (meters per hour) 0 ~ 100 mph 0.2 mph 0.7 mph ±3% ± 0.1 dgts AIR TEMPERATURE 32 ~ 113°F 0.36 ±3.6°F 0 ~ 45°C 0.2 ±2°C NTC Thermometer Operating Environment: Temperature: -10 ~ 50 °C (14 ~ 122 °F) Humidity: 40 ~ 85% R.H. Storage Environment: Temperature: -20 ~ 60°C (-4 ~ 140°F) Humidity: 10 ~ 90% RH USB cable length : 135cm (stretched) Power Supply: 1 x 9V Battery (included) Size: Main unit: approx. 145 x 72 x 35mm (5.71 x 2.83 x 1.38 inch) Vane: approx. 172 x 65 x 29mm (6.77 x 2.56 x 1.14 inch) Weight: Main unit with soft case: 248g Vane: 102g Set Includes: 1 x Thermo-Anemometer 1 x Sensor Vane Probe 1 x Protective Rubber Back Cover 1 x English Instruction Manual 1 x 9V Battery Standard Factory Package
