The MST1 Temperature Controller enables demandbased regulation of electric underfloor heating with an external floor sensor for accurate performance. It uses a simple twopoint ONOFF control to provide reliable, consistent heating without complex programming. Key benefits Precise warmth with simple control: external floor sensor ensures accurate heat delivery and stability, while twopoint ONOFF regulation keeps operation straightforward. Energyconscious operation: wide temperature range from +5°C to +40°C with stepless preselection and min/max limits, plus manual night lowering via the builtin switch to reduce energy use. Robust hardware for indoor use: flushmounted installation with 230V supply and a maximum load of 16A (3680W) for dependable performance. Enhanced safety and protection: frost safeguard and floor boundary range help protect surfaces and piping; IP20 rating makes it suitable for indoor installations while meeting basic electrical safety standards. Key specifications Operating voltage: 230V Maximum switching load: 16A / 3680W Temperature range: +5°C to +40°C Regulation: twopoint ONOFF Mounting: flushmounted Safety: IP20, frost and floor boundary range safeguards Compatibility and use Requires an external floor sensor to regulate underfloor heating for accurate response to room conditions. Suitable for indoor environments where a simple, reliable control is preferred over complex programming. Use scenarios construction with electric underfloor heating: install MST1 with an external floor sensor to regulate heating based on actual room conditions, using min/max limits to maintain comfort and efficiency. Retrofit projects: older controllers with MST1 to gain precise, demandbased control and a straightforward twopoint regulation, including easy manual night lowering. Zoned living spaces: deploy MST1 in multiple zones with floor sensors to deliver targeted comfort, reduce energy use, and maintain consistent temperatures across rooms. The MST1 Temperature Controller offers a clear, trustworthy solution for efficient underfloor heating management, combining simple operation with reliable performance, indoor suitability, and practical safety features.