Versatile heating compatibility: This digital room thermostat works with electric heating, underfloor heating, and gas boilers, providing consistent control for a comfortable home environment all year round. Dual sensor options: Choose between the builtin aluminum sensor or the 300 cm external ground sensor for flexible and accurate monitoring in various room setups and floor types. Precise adjustment: Set your desired warmth between 5 and 40 C with 0.5 C accuracy. It includes a calibration function to match actual room conditions and a frost protection mode for colder climates. Clear heating status indicator: A bright red LED light illuminates when the heater is active, allowing you to see system operation at a glance without guesswork. Use scenario 1: In a living room with electric radiators, set a comfortable target temperature (for example 21 C) and rely on the builtin or external sensor to maintain steady comfort with minimal adjustments. Use scenario 2: In homes with underfloor heating, employ the 300 cm external ground sensor to accurately monitor floor temperature and prevent overheating or cold spots, ensuring even warmth across the space. Use scenario 3: For homes using a gas boiler, integrate the thermostat to manage boiler on/off cycles for consistent comfort and improved energy efficiency, with frost protection to safeguard pipes in unheated areas.