The Mitsubishi Electric E22D68308 Room Thermistor is a temperature sensing component designed to provide accurate room temperature readings for HVAC systems. It works by detecting changes in ambient temperature and varying its electrical resistance, allowing the control board to regulate heating and cooling operation efficiently. Commonly used in ductless mini-split systems, heat pump... https://www.partshnc.com/e22d68308-mitsubishi-electric-room-thermistor