Very Rare - Discontinued! The Siemens REV12 Programmable Room Thermostat is a reliable and efficient control for boiler and heater systems. This wall-mounted thermostat features a smart digital control style and 7-day programmability, making it easy to customise heating schedules for maximum energy savings. With a sleek white rectangle shape and powered by AA batteries, this Siemens thermostat is compatible with a variety of heating systems and is a rare find for those looking for a high-quality control solution.
