Features With a USB design, it can be connected to a computer and make real-time measurements. Digital multi-function anemometer is a professional instrument for measuring wind speed, temperature and humidity. Measure wind speed, air volume, temperature and humidity, measure wind direction angle function, wind speed/air volume and temperature unit selection function. Backlight and data hold function, low battery indicator function, automatic power on/off setting function. Widely used for wind speed measurement in factories, schools, offices, transportation, homes and other occasions. Features: -With a USB design, it can be connected to a computer and make real-time measurements. -Digital multi-function anemometer is a professional instrument for measuring wind speed, temperature and humidity. -Measure wind speed, air volume, temperature and humidity, measure wind direction angle function, wind speed/air volume and temperature unit selection function. -Backlight and data hold function, low battery indicator function, automatic power on/off setting function. -Widely used for wind speed measurement in factories, schools, offices, transportation, homes and other occasions. Specification: Model: GT8907 Wind speed measurement range: UnitWind speed rangeResolutionMinimum threshold valuePrecisionm/s0.0~45.00.010.3±3%±0.1Ft/min0.0~88000.01/0.1/160±3%±20Knots0.0~88.00.010.6±3%±0.2Km/h0.0~140.00.011±3%±0.4Mph0.0~1000.010.7±3%±0.2 Package list: 1 * Anemometer Package List