Wide compatibility for heating systems This rotary knob digital room thermostat works with a range of heating systems, including electric heating and gas boilers, to deliver reliable and comfortable indoor climate control in most homes. Flexible monitoring with dual sensors Choose the sensing option that fits your setup: a builtin aluminum sensor or an external sensor with a length of 300 cm. The external option is suitable when sensing needs to cover larger or more awkward spaces. Precise temperature settings Temperature range from 5 to 40 degrees Celsius with precise control. Includes a calibration feature to align the thermostat with realtime room conditions for accurate comfort. Easy status monitoring with LED indicator A builtin LED indicator lights red when the heater is operating, enabling quick visual checks of heating activity. Use scenarios installation in a living space with electric heating or a gas boiler: use the precise 5 to 40 degrees Celsius control to maintain a steady and comfortable ambient temperature, with calibration ensuring accuracy to real room conditions. Rooms with unusual layouts or long distances: install the external 300 cm sensor to monitor temperature accurately across larger areas or away from the main thermostat location. Rental properties or offices: rely on the LED indicator for immediate status checks and use the calibration feature to maintain consistent comfort without manual finetuning.