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Honeywell Home CG511A1000 Medium Thermostat Cover Guard with Inner Shelf to Prevent Tampering (Clear)

4.5 out of 5 stars 8,491 ratings
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Purchase options and add-ons

Brand Honeywell
Model name CG511A1000 Medium Thermostat Guard with Inner Shelf to Prevent Tampering
Product Dimensions 7.6D x 19.1W x 16.5H Centimetres
Controller type Hand Control
Special feature Lockable
Colour Clear
Specific uses for product Thermostat Cover
Temperature Control Type Heating and Cooling
Connectivity technology Wi-Fi
Included components Mounting Hardware, Medium Thermostat Cover Guard, Key

About this item

  • PROTECT AND PREVENT: The Medium Thermostat Guard protects your thermostat and prevents others from tampering with your heating and cooling options.
  • LOCKABLE: This easy-to-install cover includes a lock and key for complete control, as well as air vents for optimum thermostat performance.
  • UV RESISTANT: The clear plastic casing is chemical and UV resistant that resists yellowing.
  • VERSATILE: Ideal for use in a commercial or residential environment.
  • EASY INSTALLATION: Designed to fit over existing thermostat for easy installation.
  • SIZE RECOMMENDATIONS: Will fit thermostats sized: 12,7H x 15,24W x 4,44D (cm) or smaller.
  • PRODUCT DIMENSIONS: 16,5 H x 19,05 W x 7,62 D (cm).

Frequently bought together

Honeywell Home CG511A1000 Medium Thermostat Cover Guard with Inner Shelf to Prevent Tampering (Clear)
This item: Honeywell Home CG511A1000 Medium Thermostat Cover Guard with Inner Shelf to Prevent Tampering (Clear)
$19.99
In Stock
Ships from and sold by 鶹.ca.
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Honeywell Home CG512A1009 Large Thermostat Guard, White
$34.83
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Total price:$00
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From the manufacturer

Honeywell CG511A1000/C Medium Thermostat Guard with Inner Shelf to Prevent Tamperi

The Honeywell Medium Thermostat Guard provides the ideal defense in preventing others from tampering with your heating and cooling options. An elevated peace of mind is established as users will no longer have to worry about any unauthorized access that may result with adjustments or damages. Installation is near effortless and the Guard will fit on all Medium Sized (6" W x 5" H x 1.75" D or smaller) Honeywell thermostats and a host of others. The actual casing is chemical and UV resistant which allows users to deploy their cover all year round without the slightest concern. A steadily constructed key and lock function will perform admirably as a versatile defense. Eliminate the thought of others having access to your personal thermostat with Honeywell's highly affordable and practical solution.

Product information

Technical Details

Manufacturer ‎Honeywell
Place of Business ‎GOLDEN VALLEY, MN, 55422 US
Part Number ‎CG511A1000/C
Product Dimensions ‎15.4 x 6.67 x 12.86 cm; 408.23 g
Item model number ‎CG511A1000/C
Is discontinued by manufacturer ‎No
Size ‎Medium
Colour ‎Clear
Style ‎Thermostat Guard
Finish ‎Clear
Material ‎Plastic
Shape ‎Rectangular
Item Package Quantity ‎1
Display Style ‎digital
Mounting Type ‎Wall Mount
Special Features ‎Lockable
Usage ‎Thermostat Cover
Included Components ‎Mounting Hardware, Medium Thermostat Cover Guard, Key
Batteries Included? ‎No
Batteries Required? ‎No
Warranty Description ‎1 year
Item Weight ‎408 g
Country of origin ‎China

Additional Information

ASIN B000BPGP6M
Customer Reviews
4.5 out of 5 stars 8,491 ratings

4.5 out of 5 stars
鶹 Rank
Date First Available April 21 2018

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Honeywell Home CG511A1000 Medium Thermostat Cover Guard with Inner Shelf to Prevent Tampering (Clear)

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Product description

鶹.ca Product Description

If you are looking to prevent unauthorized adjustments of a thermostat settings, the tamper-resistant CG511A Medium Thermostat Guard is for you. This easy-to-install cover includes a lock and key for complete control, as well as air vents for optimum thermostat performance.

From the Manufacturer

The CG511A Medium Sized Thermostat Guard protects thermostats from tampering in commercial and residential environments. Includes universal key and heavy duty lock.

Safety and product resources

Safety documents

Top Brand: Honeywell

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100K+ customers rate items from this brand highly
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Price-9%$19.99
Was: $21.98		$26.99$20.99$145.99$36.41$36.08
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Customer ratings
4.54.5 out of 5 stars8,491
4.64.6 out of 5 stars758
4.44.4 out of 5 stars140
4.04.0 out of 5 stars8
4.34.3 out of 5 stars118
4.44.4 out of 5 stars461
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Customer reviews

4.5 out of 5 stars
8,491 global ratings

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Customers say

Customers like the functionality, installation, and quality of the product. They mention it works well, is easy to mount to the wall, and has a solid plastic construction. Customers also say it protects the thermostat from a potential fire hazard and keeps the family from messing with the heat. They also like the design. However, some customers disagree on the fit.

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FunctionalityInstallationQualityProtectionDesignFit
29 customers mention "Functionality"29 positive0 negative

Customers find the product highly functional and useful for their needs. They mention it works well on their honey well thermostat, is easy to screw in, and works perfectly in keeping youth from playing with the house thermostat. Customers also say it's great for business and parents.

"Works great." Read more

"great product" Read more

"Works well easy to mount to the wall" Read more

"Good design. Size was hard to find else-where. Does the job. Good price." Read more

18 customers mention "Installation"18 positive0 negative

Customers like the installation of the product. They mention it fits well and is easy to mount to the wall.

"Good quality and easy to install...." Read more

"...Fits nice without the ecobee frame at the back. Easy to install." Read more

"Easy to setup on company thermostat." Read more

"Works well easy to mount to the wall" Read more

15 customers mention "Quality"15 positive0 negative

Customers are satisfied with the quality of the product. They mention it has a great solid plastic construction and is easy to install.

"Good quality and easy to install...." Read more

"Product seems sturdy and is just what we needed; however, brand new in packaging, the plastic was already scuffed and scraped...." Read more

"Great item quality as it is the same as a smaller one I purchased. My only issue is the measurements are not accurate...." Read more

"Great solid plastic construction with a set of 2 keys. Easy to install. All screws are provided. What more can you ask?" Read more

10 customers mention "Protection"10 positive0 negative

Customers like the protection the product provides. They mention it helps protect them from a potential fire hazard, keeps the family from messing with the heat, and prevents people from turning up the thermostat to 80 degrees. Customers also say the cover doesn't get knocked off the wall.

"Good cover, straight forward install...." Read more

"Covers thermostat great so the cover doesn't get knocked off the wall!" Read more

"...This helps protect them from a potential fire hazard. easy to install, fits over a standard apartment sized thermostat no problem...." Read more

"...Keeps the family from messing with the heat! A husband's Savior....." Read more

7 customers mention "Design"7 positive0 negative

Customers like the design of the product. They mention it's nice, nothing fancy, and a great addition to the home.

"Good design. Size was hard to find else-where. Does the job. Good price." Read more

"Exactly as advertised, easy to install, nothing fancy, but highly functional." Read more

"It's nice and wide to fit around my thermostat at the rental house. No complaints. It works as designed." Read more

"Well designed" Read more

21 customers mention "Fit"11 positive10 negative

Customers have mixed opinions about the fit of the product. Some mention it's perfect for their thermostat, while others say it's larger than the measurements state.

"Perfect fit wish is was not a covid price but worked well" Read more

"It was a little too big for the space I had. I must not have measured correctly. I installed it sideways so it would fit...." Read more

"Exactly what you see. Got it to put over my ecobee. Fits nice without the ecobee frame at the back. Easy to install." Read more

"...: these are very big… other than that they are good quality but I never used them because they..." Read more

Bien conçu
5 out of 5 stars
Bien conçu
Excellente qualité et s installe aisément
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Top reviews from Canada

  • Scott Phillips
    5.0 out of 5 stars Does what it's supposed to do
    Reviewed in Canada on January 13, 2025
    Verified Purchase
    Its a cover with a lock and key. Works fine
    Helpful
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  • Mark Sluser
    5.0 out of 5 stars Large size
    Reviewed in Canada on September 20, 2023
    Verified Purchase
    I thought these would be ok despite the reviews saying how high they are ): these are very big… other than that they are good quality but I never used them because they were soooo big.
    Helpful
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  • 鶹 Customer
    5.0 out of 5 stars Protects thermostat
    Reviewed in Canada on April 13, 2024
    Verified Purchase
    Covers thermostat great so the cover doesn't get knocked off the wall!
    Helpful
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  • Renz
    4.0 out of 5 stars Check your sizes.
    Reviewed in Canada on June 25, 2024
    Verified Purchase
    Measurements are conflicting unless you pay very close attention to the size.
    Helpful
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  • Shackman
    5.0 out of 5 stars Good cover, straight forward install.
    Reviewed in Canada on October 3, 2023
    Verified Purchase
    Client install to put an end to the front office back office thermostat war.
    One person found this helpful
    Helpful
     Report
  • Valarie
    5.0 out of 5 stars Hands off!
    Reviewed in Canada on March 11, 2023
    Verified Purchase
    Absolutely amazing have wanted one for years. Roommate was not able to break into it after several attempts without the key it is wellocked up.
    Helpful
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  • York
    3.0 out of 5 stars size description not right
    Reviewed in Canada on November 14, 2022
    Verified Purchase
    It shipped quick - free next day delivery as a prime member. However, the size is way too big than expected. The problem is that the size description is not right and thus misleading. So I returned right away.
    Helpful
     Report
  • James
    5.0 out of 5 stars Bien conçu
    Reviewed in Canada on October 2, 2023
    Verified Purchase
    Excellente qualité et s installe aisément
    Customer image
    James
    5.0 out of 5 stars
    Bien conçu

    Reviewed in Canada on October 2, 2023
    Excellente qualité et s installe aisément
    Images in this review
    Customer image
    One person found this helpful
    Helpful
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Top reviews from other countries

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  • tim
    5.0 out of 5 stars Keeps people from messing with the temps
    Reviewed in the United States on May 5, 2025
    Verified Purchase
    Bought this because as a father and husband I was tired of anyone messing with the thermostat. It was easy to mount to the wall and works as intended. I did eventually give my wife a key but the temps stay where I set them now. A bonus is I see this brand everywhere like hotels and my work....

    my key works on other Honeywell covers, not sure if the key is the same on all of them but I find this fact LOL. Bought a 2nd just for the keys because I lost mine before as well.
    Report
  • Jamie Vincent
    5.0 out of 5 stars Fantastic thank you
    Reviewed in Australia on August 15, 2023
    Verified Purchase
    Thank you
    Report
  • Francisco
    5.0 out of 5 stars Excelente.
    Reviewed in Spain on September 6, 2022
    Verified Purchase
    Me ha gustado pues cumple su función a buen precio. Hay que tener en cuenta que no tiene bisagras. Esto para mi es bueno, porque tengo otras con bisagras y es por donde se rompen asi que me quedo con esta. Hay que tener cuidado porque al abrirlo se despega la cara frontal. También puedes tener la cara quitado para algunas ocasiones y asi no tener la puerta abierta con riesgos.
    Report
  • karinne Jankowski
    5.0 out of 5 stars Boîtier de bonne qualité
    Reviewed in France on November 6, 2023
    Verified Purchase
    Utilisé dans un gîte pour empêcher l'accès au thermostat de chauffage. Fonctionne très bien. Le plexi est epais et de bonne qualité.
    Report
  • Fatima
    5.0 out of 5 stars Good and strong solution
    Reviewed in the United Kingdom on December 12, 2023
    Verified Purchase
    I bought this for my business when I saw clients messing with my thermostat. Eventually after many incidents of it being on over the weekend and huge electric bills, I decided to install this. It was super easy to install with four simple screws. Everything came included and works beautifully. Great purchase !!!
    Customer image
    Fatima
    5.0 out of 5 stars
    Good and strong solution

    Reviewed in the United Kingdom on December 12, 2023
    I bought this for my business when I saw clients messing with my thermostat. Eventually after many incidents of it being on over the weekend and huge electric bills, I decided to install this. It was super easy to install with four simple screws. Everything came included and works beautifully. Great purchase !!!
    Images in this review
    Customer image
    Report