Honeywell T4 Wired Programmable Thermostat

Honeywell's programmable T4 seven-day thermostat is perfect for automatic control of time and temperature in both domestic and light commercial applications. Each unit is engineered with optimum stop, start and delayed start features which can intelligently learn how the room in which it's located is heated. Fully compatible with 24-230V on/off appliances such as combi boilers, zone valves and gas boilers, this T4 unit from Honeywell can be used as a temperature sensor in Y and S plan systems and features easy-to-read on-screen text displays (with an extra-large LCD) and simple function buttons for totally straightforward operation and programming. Built with an energy-saving TPI control, stop, start and delay features, and an innovative 'Away' function, the Honeywell T4 helps you maintain complete control over your energy consumption. Plus automatic frost protection adds extra peace of mind in cold snaps. The unit comes with a pre-configured 5/2 schedule, an optional backlight, automatic switches between GMT and BST time changes, and a low-power indicator to warn you when it's time to replace the batteries. Installing in three easy steps (wire, power up/test and configure), the T4 comes with a clip-on cover to the fixed wall plate (which features a new and improved design with extra wiring space) for fuss-free project completion.