Multisystem compatibility Designed to work with electric heating, hot water heating, and gas boilers. This rotary knob digital room thermostat provides a comfortable indoor climate tailored to your home's heating setup. Sensor options Includes an internal aluminum sensor and a 300 cm long external sensor, allowing you to choose the monitoring option that fits your room layout and installation preferences. Accurate temperature control Temperature range 5 to 40 C in 5 C steps. A calibration feature ensures readings align with actual room conditions for reliable comfort control. Visual operation confirmation Clear LED indicator shows the thermostat status, with a red light when heating is active for immediate confirmation. Use scenarios installation on a gas boiler in a living space: place the external sensor where it reflects room conditions to prevent overheating and maintain steady comfort. Retrofit for electric heating in a small apartment: use the internal sensor for a straightforward setup and reliable temperature control with simple adjustments. Home with hot water heating or multizone system: set and balance comfort across rooms, using the external sensor placement to optimize readings in larger spaces.