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🔐 Lock in comfort, lock out chaos — your thermostat’s new best friend!
The Honeywell Home CG512A1009 Large Thermostat Guard is a lockable, clear acrylic cover designed to fit Honeywell and most other thermostats up to 8.25" W x 5.75" H. It features a tamper-proof inner shelf and a heavy-duty key lock to prevent unauthorized adjustments. The UV and chemical-resistant cover ensures long-lasting clarity and protection, making it ideal for both residential and commercial use.
| ASIN | B0002YSV78 |
| Additional Features | Lockable |
| Backlight | No |
| Best Sellers Rank | #35,198 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #25 in Home Thermostat Accessories |
| Brand | Honeywell Home |
| Brand Name | Honeywell Home |
| Color | Clear |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.4 out of 5 stars 3,451 Reviews |
| Display Type | digital |
| Global Trade Identification Number | 00085267990011 |
| Included Components | Key, Large Thermostat Guard, Mounting Hardware |
| Item Dimensions D x W x H | 3.25"D x 9.75"W x 7.25"H |
| Item Type Name | Thermostat Guard |
| Item Weight | 1.3 Pounds |
| Manufacturer | Honeywell Home |
| Manufacturer Part Number | CG512A1009/C |
| Manufacturer Warranty Description | 1 year product warranty. |
| Material Type | Multi |
| Model Name | Honeywell CG512A1009 Large Thermostat Guard with Inner Shelf to Prevent Tampering |
| Model Number | CG512A1009 |
| Mounting Type | Wall Mount |
| Power Source | Manual Winding |
| Product Dimensions | 3.25"D x 9.75"W x 7.25"H |
| Product Style | Minimalist |
| Screen Size | 5 Inches |
| Shape | Rectangular |
| Special Feature | Lockable |
| Specific Uses For Product | Air Conditioner, Electric Baseboard Heater, Furnace, Heat Pump |
| Temperature Control Type | Heating and Cooling |
| UPC | 085267990011 |
| Unit Count | 1.0 Count |
N**R
Good quality
They are made a little cheap.But they really do the job.I recommend the product.Just be very careful opening and installing this product
C**E
Super Big!
This was prefect and easy to install! We have a really large (Emmerson) thermostat, and I had bought a couple other "universal large" covers but they where too small. My Mother has Alzheimer's and turns up the heat at 3 am(we live in the desert) to 95'. So this is a great safety measure.
G**H
Highly recommended seller
Great deal and item as described.
W**D
Not perfect, but does the job nicely.
These are great covers. I ordered 4 of them (3 medium and 1 large) and they all came with the same key. This is convenient; but I'm not sure it was intentional, or if all these covers just universally have the same key. Anyway, they're easy to install and they look nice. My only complaint is that the two pieces fit together SLIGHTLY loose, meaning there's just a little bit of play between them when it's locked. This doesn't create a bit issue, but it would be nicer if they were a snug fit, which I think would discourage tampering. The plastic is durable, though I will say that the reason I purchased these was to replace some that had been tampered with and were broken, so the plastic certainly isn't break-proof. If you're looking for something to prevent access, you may want to look at a metal option or something stronger. If you're just looking for something to discourage people from trying to tamper with the thermostat, this is a good, affordable option.
A**E
Works great to keep family from fighting over thermostat
It looks big on the wall but it fits the thermostat perfectly. Just what we needed to keep people from fighting over control of the thermostat. Definitely worth it if family can't agree on temperature for the house.
R**Y
Easy to install
Keep people from changing the thermostat in my home. It was easy to install and comes with two keys
S**Y
Hard to know size
Too big
A**R
Perfect
Nice and big and it should get the job done! I'm so sick of coming home to find the A/C turned off because the 70 year old man is cold in 80 degrees.
M**Y
nice
good
H**N
It’s perfect!
It fits perfectly! It’s in a rooming house where tenants were constantly changing the heat settings: it’s a godsend!!!
B**R
Great large size!
Fits standard ducted controller and zone switch perfectly!
C**N
groot genoeg om de thermostaat te omvatten en beschermen.
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
Bien
Un peu TROP grande. Dommage qu'il ni est pas le choix de tailles. Sinon bien
Trustpilot
2 weeks ago
2 weeks ago