The Mastercool Digital Thermometer/Hygrometer with Bluetooth, No. 52234-BT, is designed to work with Mastercool's Connect app to remotely provide dry bulb temperature, wet bulb temperature, and relative humidity. It allows for varying the refrigerant charge in a system and seeing in real time, how the supply parameters change. With a convenient clip, it can attach to a vehicle's air vent. The thermometer can easily switch between dry bulb, wet bulb, and relative humidity, as well as between Fahrenheit and Celsius for easy-to-read calculations.
