The OJ Electronics ETF-110/99C Floor Sensor accurately measures the floor temperature and communicates with your thermostat, increasing the comfort and efficiency of your radiant floor Heating system. The NTC 10 K-Ohm sensor is compatible with most modern electronic thermostat controllers, including OJ Electronics, Aube/Honeywell, Ditra, NuHeat, SunTouch and QuietWarmth. We also provide underfloor heating cables.