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Honeywell CMT921 Wireless Room Thermostat

Product Code: 87377

Rated 4.2 out of 5 by 5 reviewers.

Electronic sensing element. Wireless. Override facility. Holiday mode. Automatic BST/GMT time change. CE approved.

  • Digital Display
  • 1
  • 2 or 3 On / Off Periods
  • 1 Pre-Set Programme
  • 24 Hour Programmable
  • Wireless
  • Frost Protection
  • View more information

Product contents:
RF Room Unit and RF receiver Box

Switch/contact rating: SPDT 10(3)A. Temperature range: 5-35°C. H x W x D: 89 x 133 x 26mm. 2 x AA batteries supplied. 30m straight line transmitter range.

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Honeywell CMT921 Wireless Room Thermostat Instruction Manual

£117.99 (inc. 20% VAT)

4.2 5 5

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Rated 4 out of 5 by elegant and workmanlike I found no difficulty in installing and setting up this thermostat even though I'm approaching 90 years of age. It does just what I want, and does it well, and from previous experience of this manufacturer's products I expect it to be very reliable. 16 Oct 2014
Rated 5 out of 5 by Easy installation Bought to replace 4 year old defective unit, where the display had all but disappeared (hopefully this will last longer). Didn't need the receiver box as existing one was ok, so could have saved some money. However, to synchronise the new unit with existing receiver was an absolute doddle (a 5 minute job that actually took 5 minutes). Unit now working perfectly & is easy to program, use & understand. 2 Oct 2013
Rated 5 out of 5 by Great Product I used this to replace a Drayton Digistat system which was unreliable, I kept having to re-pair the controller and the base station. It works well and to the guy who gave it 3 stars because it isn't a 7 day programmer, you should have purchased the right unit, Honeywell do a 7 day unit as well you just ordered the wrong one. 15 Mar 2013
Rated 5 out of 5 by Best ever I've been using this for over 3 years and must say it's great. Reduced energy bills, never failed and low battery indicator started flashing recently. I don't know why prev person gave it just 2 stars. You don't buy Renault Clio and then complain that it's rubbish as a Trade Car. If you need 7day programmer go and buy 7 not 1 day one!!! Great product but bit pricey... 28 Feb 2013
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Download more info (pdf)

Brand Honeywell
Colour Beige
Manufacturer Guarantee 1 years
Manufacturing Standards CE/RoHS/WEEE
Model No CMT921
Pack Size 1
Product Depth 26 mm
Product Height 89 mm
Product Length 133 mm
Product Width 133 mm
Total Product Weight 0.462 kg