Electromechanical flush-mounted room thermostat for controlling or monitoring temperatures in living rooms, offices and hotels. Suitable for all standard switch ranges. Matt black, 55x55 cover with knob. Suitable for water-based and electric heating systems. A very small switching differential is achieved through thermal feedback. When the clock terminal is switched, the temperature is regulated to approx. 4K lower. Adjustable range restriction in the setting knob as a heating cost brake. A captive screw with threaded insert for fastening the housing cover and practical plug-in terminals facilitate installation. Installation in 55 mm flush-mounted box.