Honeywell CM927 CMS927 CMS927B1049 Wireless Room Thermostat - REPLACEMENT UNIT

CM927, CMS927, CMS927B1049. This thermostat does not have all the features the CM921 & CM927 had. This thermostat uses the 868MHz 'Ramses 2' RF protocol, so can easily replace existing Honeywell CM Series Wireless Thermostats (simply binds to existing Honeywell BDR91 Wireless Relay Boxes).

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