Versatility & Compatibility - This smart thermostat is designed to work seamlessly with 24-230V on/off and OpenTherm appliances such as combi boiler systems, heat pumps, gas boilers, and zone valves, making it suitable for various environments. Intuitive 7-Day Scheduling - Experience flexible programming options with this smart central heating controller. Set up to 6 independent time slots per day, easily copy schedules across days, and switch effortlessly between OFF, Manual, Eco and Auto modes. Modern, Minimalistic Design - Featuring a large backlit screen and an intuitive interface, this boiler thermostat is easy to operate and allows you to review current settings at a glance. Comes with a 2-year warranty. Smart Home Integration - Connect this digital thermostat to your home heating system for seamless control. The T3 Series is the top choice for heating professionals and customers too. Efficient, Reliable Operation - This wall thermostat features a self-learning TPI algorithm that adapts to your space. Battery-powered for consistent performance, it also replaces the CM907 and includes automatic time clock adjustment. (2 AA batteries included).