【Easy to connect, safe to use】 Featuring large LCD display with backlight, this programmable thermost is suitable for electric heating devices or on/off valve actuator used in water-based heating systems. Temp set range: 5℃~90℃. Power supply: AC 230V, 50/60Hz. Output: 16A. 【Flexible weekly scheduling】The thermostat offers flexible weekly programming with three distinct modes: customize separate schedules for weekdays and weekends (5+2), set one day differently from the other six (6+1), or a single schedule for the entire week (7+0). 【2 modes to choose from】 In addition to 5+2/6+1/7 days program mode, this electric underfloor heating thermostat programmable also features manual mode which allows you to keep your room at a constant temperature. 【Internal and external sensor selection】 This programmable thermostat features built-in air sensor and 3m external temperature sensor probe. You can choose to use built-in sensor, floor sensor or both sensors as you need. 【More functions】 Temperature calibration, child lock, frost protection, high/low temperature protection, data storage when power off, reset, etc. Package: 1 * programmable thermostat, 1 * 3m external temperature probe, 1 * manual.