【Easy and Safe to Use】With simple installation and compatibility with electric underfloor heating system, this programmable underfloor heating thermostat features a large, easy-to-read backlit LCD display. Power supply: AC 230V, 50/60Hz. Output: 16A. Flush mount. 【Flexible weekly programming】With 5/2-day, 6/1-day, and 7-day programming that allows for individual programming with up to 6 time period settings per day, you have the control you need to save money and energy. 【2 modes to choose from】In addition to the 5+2/6+1/7-day programming mode, this programmable thermostat for electric underfloor heating also offers a manual mode that allows you to keep the room at a constant temperature. 【Internal and external sensor selection】This programmable thermostat comes with a built-in air sensor and a 3m external temperature probe. You can choose to use a built-in sensor, a floor sensor, or both sensors according to your needs. 【Additional features to meet your more professional