Room temperature sensor -23K-18K, tube temperature sensor 10K-8K, defrosting sensor 10K-8K, press exhaust sensor 46K-37K, outdoor ring temperature sensor 15K-12K. Temperature sensors measure indirectly by changing a property of an object with temperature. The characteristics of many materials and components change with the change of temperature, so there are quite a lot of materials that can be used as temperature sensors.
For the defrosting sensor, the key is the resistance value at 7 degrees: -18 degrees: 16.9k-5 degrees: 8.4k 0 degrees: 6.5k 5 degrees: 5.06k.