LavaTap Pro Honeywell Wireless Programmable Thermostat CM927 CM921 CM727 Replacement Central Heating Programmer Boiler Plus Compliant, White, Standard : Amazon.co.uk: DIY & Tools
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Pro Honeywell Wireless Room Thermostat Direct Replacement for Honeywell DT92 DT92E DT92E1000 Digital Thermostat Works with Honeywell BDR91 Receiver : Amazon.co.uk: DIY & Tools
CM927 - User Guide
Sending a Binding signal from the CM921 or CM927 WirelessThermostat - YouTube