The 3-IN-1 THERMO-ANEMOMETER-HUMIDITY instrument conveniently measures temperature, air velocity, and humidity in one handy device. This unit features an ergonomic pocket-sized housing with large dual LCD for simultaneous temperature and air velocity or relative humidity readings. Features data hold to freeze the displayed value and records minimum/maximum readings. The 3-In-1 has a built-in low friction vane wheel that improves accuracy of air velocity in ft/min, MPH, m/s, km/h, and Knots. The built-in precision thin-film capacitance humidity sensor enables fast response while the thermistor relays ambient temperature measurements. High temperature measurements available by using Type K thermocouple (not included).