Honeywell T4R 7-Day Wireless Programmable Thermostat The Honeywell T4R is a modern wireless 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: Wireless 7-Day Programmable Room Thermostat Battery Powered (with Low-Power Indicator) and Easy Change Battery Compartment Simple Push Button Access to Configuration Menus Compatible with 24-230V On/Off Appliances Such As Gas Boilers, Combi-Boilers and Zone Valves 7-day Programming with 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 Manufacturers 1 Year Guarantee