Room/return air sensor — reads indoor air temperature so the board knows when to ramp cooling or heating up or down.

Coil sensor — monitors refrigerant temperature at the coil, used to prevent icing and manage defrost cycles.

Outdoor ambient sensor — reads outside air temperature so the system can adjust operation for hot or cold weather.

Featured Genuine Sensor

Wire color isn't reliable. Manufacturers reuse the same wire colors across different sensor types. Match by the part number printed on the sensor housing, not the wire.

Find Your Exact Sensor

Genuine Midea and TCL temperature sensors, matched by part number.