

🔐 Lock in control, unlock peace of mind.
The Honeywell Home CG512A1009 Large Thermostat Guard is a robust, UV and chemical-resistant protective casing with a secure key lock and inner shelf, designed to prevent tampering and unauthorized adjustments on large Honeywell and compatible thermostats up to 8.25"W x 5.75"H x 2.75"D. Its flexible mounting options and durable materials make it an essential safeguard for professional and home HVAC setups.



| ASIN | B0002YSV78 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 67,260 in DIY & Tools ( See Top 100 in DIY & Tools ) 30 in Thermostat Accessories |
| Colour | Colorless |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,882) |
| Date First Available | 7 Aug. 2012 |
| Display style | digital |
| Finish | Possibly bright |
| Included components | Inner tray, key lock |
| Item Package Quantity | 1 |
| Item Weight | 567 g |
| Item model number | CG512A1009 |
| Manufacturer | Honeywell Home |
| Material | Multi |
| Part number | CG512A1009/C |
| Plug profile | Wall Mount |
| Power source type | Battery Powered |
| Product Dimensions | 8.59 x 24.77 x 18.42 cm; 566.99 g |
| Shape | Rectangular |
| Size | L |
| Special Features | Lock with inner compartment |
| Specific uses | Heating, ventilation, and air conditioning |
| Specification met | UL |
| Style | Compact |
A**R
good
Good product
A**R
Quality product but beware: internal dimensions are not given in the description
This is a quality product but beware: the internal dimensions are not specified and are necessarily smaller than the external dimensions given in the description. For my use: protecting a Hive thermostat and a Hive controller, the 'guard' just fit my two devices with barely a centimeter to spare in the vertical dimension. Had the separation between the two devices been greater, the 'guard' would have been useless. I got lucky. In shipping and handling, the film packaging rubs against the front cover, whitening the clear plastic a little. This can be seen in the photo against the black background of the lower right of the thermostat.
A**R
Does job
Good quality does the job
P**G
Great delivery service from USA ahead of schedule
Great delivery service from USA ahead of schedule. Perfect fit; very sturdy; good air circulation; two fixing positions. All in all an excellent buy.
J**T
Excellent throughout
Excellent throughout
E**S
Good product but poorly packaged
Great thermostat cover and fit for purpose. Only issue is the plastic packaging scratches to the front of the cover which is clearly visible when fitted. Order 2 and both are the same.
J**H
No security
Solid, but surface scratches due to poor packaging, bought several and all damaged Biggest problem is they are all keyed alike so nothing stopping the HMO tenants from buying another here and adjusting the stat! Will have to replace the lock
P**B
Good design - works well.
I bought this to cover a thermostat in a communal area where various people kept fiddling with it and changing the temperature. It has enabled me to keep a steady controlled temperature without frequent changes (both up and down) by unauthorised people. They may hate it. I love it - and it is working well. I think this will have recovered its own cost quickly by regulating temperature at a sensible temperature..
M**Y
good
V**.
Bonne qualité !
G**A
Used for a Sauna Controller so Patrons could see temperature of sauna but could not fiddle. Great that I could mount the cover with out having to first disconnect and remove the controller that I was trying to protect.
C**N
De thermostaat werd "misbruikt" door veel te hoge temperaturen te vragen. De beschermkap moet dat voortaan verhinderen. Het is de enige thermostaatbeschermer die groot genoeg is voor de aanwezige thermostaat.
O**L
Un peu TROP grande. Dommage qu'il ni est pas le choix de tailles. Sinon bien
Trustpilot
5 days ago
1 month ago