Honeywell T4 7-Day Programmable Thermostat The Honeywell T4 7-Day Programmable Thermostat is a modern a wired 7-day Programmable Room Thermostat. It is designed to provide automatic time and temperature control of domestic systems in domestic or light commercial premises. Key Features and Benefits: Wired 7-day Programmable Room Thermostat Suitable for Any Boiler 7-day Programming; 5/2 or Single Day Schedules Four or Six Independent Time & Temperature Settings (Default is 4) Temporary Schedule Override Until Next Set Point or for 1 or 2 Hours Continuous Time, Displayed in Extra-Large LCD Height: 95mm Width: 135mm Depth: 26mm Manufacturers 1 Year Guarantee