Manual Underfloor Heating Thermostat 220V 16A, Electric Floor Heating Controller, Mechanical Room Thermostat with Built-in Sensor and External Floor Probe XUEMEI flush mount manual thermostat provides automatic on/off control for electric underfloor heating systems and other electrical heating applications. Temperature control range: 5°C to 40°C. Output: Max 16A. CE certified for safety and reliable performance. Simply press the push button to turn on and adjust the desired room temperature using the rotary knob. The built-in air sensor monitors room temperature and automatically pauses heating when the preset temperature is reached. Equipped with a built-in room sensor and a 3m NTC external floor sensor. The external probe prevents excessive floor temperatures by ensuring the surface temperature does not exceed 50°C. LED indicator shows heating status. When illuminated, the system is actively heating. Specifications: Power supply: AC 230V 50/60Hz; Power consumption: 5W; Temperature limit range: 25°C to 55°C; Protection rating: IP20. Package includes: 1 x Thermostat, 1 x 3m floor sensor, 2 x Mounting screws, 1 x English user manual. Safe, energy-efficient, and high-performance design. Wall-mounted installation for indoor use with free air circulation around the unit. Avoid placement near direct heat sources, sunlight, drafts from doors or windows, or exterior walls that may affect temperature sensing. Easy to operate: On/Off push button and rotary knob for precise temperature control. LED indicator for clear system status. Suitable for electric underfloor heating and other resistive heating systems. Simple operation: 1. Push button: "I" for on, "O" for off. 2. Temperature setting: Turn the knob to desired temperature. 3. Heating indicator: LED lights up during heating cycle.