LavaTap Pro Wireless Room Thermostat Kit Replaces Honeywell CM927 CM921

Made and supported by Resideo: The company behind Honeywell Home and Honeywell's home heating business until 2018, with a UK technical support line printed in the user guide Replaces CM927 and CM921 kits: For wireless Honeywell CM927, CMS927, CMS927B1049, CM921, CMS921, CM727, CMS727, CMS727E1016, CMT727, CM721 and CMS721 systems Check your system first: For boilers switched on and off through a wireless relay box. Not for wired thermostats, OpenTherm only boilers or app controlled smart systems Pre bound and ready to go: Thermostat and relay box come paired from the factory. Can also be bound to an existing Honeywell BDR91 relay box, with a QR code link to a binding video 7 day programming, 4 periods a day: Set each day on its own or copy one day to others. Optimisation brings the heating on early so rooms reach temperature on time, Boiler Plus compliant Simple everyday control: AUTO follows the schedule, MAN holds one temperature and OFF stops the heating. A temporary override lasts until the next period, a permanent one until changed Complete kit: Wireless thermostat, mains powered relay box, table stand and 2 AA batteries included. Wall mount it or stand it on a shelf, and settings are kept during battery changes