This electronic two-point controller has been specifically designed for regulating electric or hot water heating systems, as well as supplementary heating for floors and other surface temperature control systems. The remote sensor HF-8/4-K2 (4 m) is included in the delivery. In the event of a sensor break or short circuit, the heating will be turned off. The temperature reduction input allows for regulation to a temperature approximately 5 K lower (night reduction). When combined with the appropriate cover set JZ-035.xxx, it is compatible with all common switch programs.