Electric Bock Digital Heating Programmable Radiator Thermostat HD13 L

️ HEATING COST SAVING The radiator thermostatic valve has a weekly programming function, which will automatically set to the desired temperature at the set time. 4 heating and lowering times adjustable, weekly program Monday-Sunday, Monday-Friday and weekend or each day individually adjustable, summer mode, window open detection, frost protection function, boost function. ️ CLEAR BACKLIGHT DISPLAY: The display shows the valve opening in %, the desired temperature and the current time in 2 second intervals. A clear graphic illustrates the progress of the temperature program. ️ ENERGY SAVING WITH WINDOW OPEN DETECTION: The thermostat automatically detects when a window is opened and closes the valve immediately to prevent energy loss and reduce heating costs. ️ EASY & UNIVERSAL INSTALLATION The radiator controller is easy to install without having to turn off the heater or drain water. The universal union nut fits most common valves with M30 x 1.5mm thread size. ️ ADDITIONAL FEATURES FOR MORE CONVENIENCE: Includes BOOST function, which fully opens the valve for 20 minutes, anti-frost function, temperature correction, automatic summer/winter time adjustment. No app or WiFi required.