MULTIFUNTION ANEMOMETER：A handheld wind speed meter measures wind speed, wind/air temperature, ambient humidity, and wet-bulb globe temperature(WBGT) on the LCD backlight screen in real-time. 5 units of measuring wind speed: m/s, km/h, ft/min, knots, mph, and easy to switch ℃ / ℉ units in temperature MULTIPURPOSE HEAT STRESS METER：Compare other wind speed gauges, these air flow meters come with wet bulb globe temperature measurement.WBGT temperature and air temperature range from 0-50℃/32-122℉ with a high resolution of 0.1℃ / ℉. A perfect WBGT meter is suitable to control work activities in a hot environment from danger VERSATILE WIND ANEMOMETER：Wind velocity, air temperature, humidity are simultaneously displayed on the LCD screen.Max / Min airspeed reading; Auto power-off; Low battery consumption.When you set the WBGT temperature alarm warning, a bright LCD red backlight will light up to provide instant notification of high-temperature conditions EASY TO USE：Compact and easy-to-use airflow tester anemometer has a metal threaded hole in the bottom, easily clip into a tripod vane mount to set up a weather and heat safety monitoring station.Wind volume velometer is widely used in industrial and outdoor activities, like athletics,firefighters train, marathon, checking air balance, shooting, hunting, sailing, etc Great After-sale Service：If you have any question about our product,we are pleasure to offer help to you.