Wired room thermostat with diaphragm sensor and temperature adjustment dial. Can provide automatic temperature control of domestic wet central heating systems. To be used either as a direct switch for circulating pumps and boilers, or to operate spring return and motor open/motor close zone valves. Ideal for surface or pattress box mounting. Suitable for use in residential or light commercial applications. 5-35°C Temperature Range Suitable for All Boilers 2-Wire Installation Mains-Powered Analogue Dial Display Double-Insulated Without Frost Protection Wall-Mounted Modern Design 5-35°C Temperature Range Suitable for All Boilers 2-Wire Installation Mains-Powered Analogue Dial Display Double-Insulated Without Frost Protection Wall-Mounted Modern Design