The T4 wired 7-days thermostat is a minimalistic yet modern design with a backlight for comfortable viewing. It includes features like factory programmed daily, 5+2 heating or 7D schedule, schedule options with 6 independent set points for time and temperature. Holiday schedule feature allows to override regular programmed schedule via adjustable energy saving temperature set point for up to 99 days, making it ideal for when you are away. This modern 7-day programmable room thermostat provides automatic time and temperature control of systems in domestic or light commercial premises. The T4 wired programmable thermostat is compatible with on/off heating applications. It features a clear, user-friendly digital display with easily identifiable icons and backlight. Offers 7 day, 5/2 day or single day scheduling, giving users a schedule to suit their needs. Easy override functionality allows users to quickly make occasional changes – 1 hour, 2 hours or until the next set point. Automatic summer and winter time changes give users all-year efficient control. Features adjustable frost protection for added peace of mind. The receiver box includes a simple flip-up wiring bar and utilizes existing wiring from a wired thermostat, with specific OpenTherm terminals.