Room thermostat ST1 is intended for adjustment of room temperature of domestic houses, apartments and working premises. It may also be used for zone temperature controlling in large buildings. This thermostat can be used with radiator, convector or fan heating systems. Room thermostat ST1 has three operating modes: heating, cooling and OFF (frost protection remains active). A weekly digital program timer is built-in. The wanted day and night temperatures are set separately in a setting range from 10 C to 30C. The large LCD display shows the room temperature, device operation and other data. Two additional heating functions can be activated at any moment: comfort heating with key -Party- and economy heating with key - ECO -. You can also set duration for both functions. The ST1 room thermostat is of modern design, technically advanced, user friendly and simple to use. ST1 gives us a higher comfort of living by lower oil consumption.