hi, my honeywell CM927 has stopped working, they have discontinued this model and its direct replacement is the T4R. Not only is the T3 Series simple to install, it’s fully compatible with multiple boilers and systems. It can be used alongside 24-230V on/off appliances like heat pumps, gas boilers and combi boilers, as well as zone valve applications that undergo no electric heating.

The T3R thermostats are designed to provide automatic time and temperature control of heating systems in homes and apartments. Wireless thermostats can be placed anywhere in the home since no wires are needed between the thermostat and the boiler.The PRO wireless digital room thermostat has been designed to provide automatic temperature control of gas or oil fired boiler systems, underfloor heating, electric heating and zoning systems. provided 'as is' and 'as available' for your use, without any representation, warranties or conditions of any kind, either express or implied, including all implied warranties or conditions of merchantability, merchantable quality, fitness for a particular purpose, durability, title and non-infringement. The default timer/temperature schedule is acceptable, and the one-touch buttons to temporarily change the temperature are useful. Designed to provide automatic time and temperature control of heating systems in homes and apartments. Goods including but not limited to printed circuit boards, control boxes, chemicals, hazardous materials, flammable liquids or gases.

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