For use in replacing damaged sensor wires from TH115 and TH114 model thermostats. The external temperature sensor controls the ambient air temperature in A mode, while also controlling floor temperature in F mode. AF mode controls the ambient air temperature and maintains the floor temperature within desired limits using an external temperature sensor.
- Can be installed into sanded grout line and re-covered with fresh grout.
- 22AWG low profile wire makes for easy installation
- Thermister Resistor accurately reads floor temperature
- 15 ft. of cable
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