ActronAir Indoor Coil Outlet Sensor 7.5m 3-Pin JST Connector monitors the temperature at the indoor coil outlet on AIRES and Advance R32 residential split ducted systems, providing the leaving-coil temperature data the indoor PCB uses to manage coil performance and prevent liquid refrigerant carry-over to the compressor. The 7.5m cable length and 3-pin JST connector are specific to the outlet sensing position in AIRES/Advance indoor units -- confirm against the unit's service documentation before ordering to avoid fitting the inlet variant at the outlet position. Isolate power at mains before replacing coil temperature sensors.