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Honeywell CM921 Wireless Programmable Room Thermostat

4.512 product ratings

HeatingON (2231)

99% positive Feedback

Price:

£169.98

Free postage

Estimated delivery Wed, 6 Aug - Mon, 11 Aug

Ships today if you order in the next Ships today if you order in the next 2h 8m

Returns:

30 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.

Condition:

New

The Honeywell CM921 RF Wireless Programmable Room Thermostat is a sleek and efficient device that allows you to easily control the temperature in your home. With its wireless design and digital display, you can programmable up to 7 days in advance and adjust the settings with ease. The thermostat runs on AA batteries and is compatible with other Honeywell products, making it a versatile choice for any home heating system. Its white rectangular shape and modern design make it a stylish addition to any room.

About this product

Product Identifiers

BrandHoneywell

MPNCM921

ModelCM921

eBay Product ID (ePID)5034604545

Product Key Features

Power SourceCorded Electric, Battery

Control StyleDigital

Thermostat ShapeRectangular

Wire ConfigurationWireless

ColourWhite

FeaturesDigital Display

Sensor TechnologyTemperature

Dimensions

Weight381g

Additional Product Features

Brand ColourWhite

All listings for this product

item 1 HONEYWELL CM921 CM927 CM901 CM907 Battery Cover Only

£10.78

+ £2.94 postage

item 2 HONEYWELL CM921 CM927 CM901 CM907 Battery Cover Only

£10.78

+ £2.94 postage

item 3 HONEYWELL CM921 CM927 CM901 CM907 Battery Cover Only

£14.75

Free postage

item 4 HONEYWELL CM921 CM927 CM901 CM907 Battery Cover Only

£16.12

+ £2.70 postage

item 5 Honeywell CM921 Wireless Programmable Room Thermostat & reciever

£73.48

+ £2.94 postage

Last one

item 6 Honeywell CM921 Wireless Programmable Room Thermostat & reciever

£73.48

+ £2.94 postage

item 7 HONEYWELL CM921 PROGRAMMABLE ROOM STAT WIRELESS CMT921 Like CM927

£79.55

Free postage

item 8 HONEYWELL CM921 RF WIRELESS PROGRAMMABLE ROOM THERMOSTAT + BDR91A RECEIVER PACK

£169.98

Free postage

listings for this product

Ratings and reviews

Learn more

4.5

12 product ratings

10 users rated this 5 out of 5 stars
0 users rated this 4 out of 5 stars
1 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
1 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

by motheregg
10 Nov, 2023
Honeywell wireless thermostat
All good.
Verified purchase: YesCondition: Pre-owned
by maas_3415
07 Jul, 2025
Like new can’t fault honey well controll...
Like new can’t fault honey well controller works great saved me alot of money
Verified purchase: YesCondition: Pre-owned
by sc1533
02 Mar, 2022
These models have an LCD issue
Good thing there are so many lcd fixers online to keep us going!
Verified purchase: YesCondition: Pre-owned
by a.clov.ugvskqxtp4
25 Jan, 2024
Great
Easy to set up works well
Verified purchase: YesCondition: Pre-owned
by dahod_32
24 Mar, 2021
Didn't do what it said on the tin.
It didn't work, but was immediately taken back with re-imbursement by supplier.
Verified purchase: YesCondition: Pre-owned
by irishgal1967
01 Jun, 2025
Replaced an old one, linked up and works...
Replaced an old one, linked up and works like it should.
Verified purchase: YesCondition: Pre-owned
by rowlandv1
01 Nov, 2022
Excellent
Excellent product. Exactly as described.
Verified purchase: YesCondition: Pre-owned
by Xv615kePRJC@Deleted
08 Nov, 2023
Very good
Good value
Verified purchase: YesCondition: Pre-owned
by kevin.0122
29 Jul, 2020
direct replacement for faulty unit.
A
Verified purchase: YesCondition: Pre-owned