Resideo Honeywell TotalHome Wireless 7-Day Programmable Thermostat (TTHWFP) Direct replacement for a Honeywell CM927/CMS927/CM727/CMT921/CMT927 Range Honeywell Customer Service Number included within instructions Enjoy a modern, fully-featured and programmable thermostat at an affordable price. Wireless thermostats can be placed anywhere in the home since no wires are needed between the thermostat and the boiler. A programmable wireless thermostat allows you to choose exactly when you want the heating on, and how high or low the temperature should be. Service reminder Easy To install Easy to use Large easy to read display Boiler Plus 4-time schedules per day Pre-bound relay Contents: 1 x Wireless Programmable Thermostat 1 x Wireless Relay Box 1 x Table Stand 2 x AA Batteries 1 x Wall Mount Kit 1 x Instructions