Temp sensor. A Sensor that reads passenger cabin air Temperature. For Primary HVAC. HVAC Evaporator Temperature Switch. Location-HVAC Box. Temperature Sensor For A/C Evaporator. Gauge. AIR Conditioning (A/C) Evaporator. Cabin Air. HVAC Evaporator Switch. IN - Car. Refrigerant. Thermostatic Switch. Included with: AC & heater assembly, Evaporator assembly.