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Fits your thermostat: fits over existing thermostats up to 8.



8” inch 4. 1cm x 4. 6cm irregular shaped backside hole for thermostat wires to wall; Measure your thermostat length by depth by height to ensure correct fitment; Open hinge allows cover to come apart into 2 separate pieces when opened; 7. 7” x 3. 3” 4. 75” inch 19. 6cm x 8. 4cm x 12. 1cm outside dimensions OD. Decrease your energy bill: the bisupply | medium thermostat guard is an ac lockbox for thermostat control; Constructed of heavy-duty transparent plastic allows you to clearly see your thermostat while preventing anyone from tampering with your heating or air conditioning settings and protecting against unwanted changes to preferred settings in commercial and residential areas such as an office, church, restaurant, school, or home.
No temperature fluctuation: AC control cover is ventilated on all 4 sides to avoid interference with detection of current temperature by your thermostat. Easy to install: there are 2 separate parts – the back plate opaque piece mounts to the wall, and the cover locks on the back plate; To install without removing thermostat from wall, your thermostat mounts on the back plate, only install clear cover and not back plate; Mounting screws included to affix to any surface; Phillips screwdriver required for installation, not included.




Prevent unwanted changes to your thermostat – Great for use in offices, churches, restaurants, schools and other public areas to control your energy costs. No more sneaky hands changing your heating and cooling! Fits over existing thermostat – nearly universal fit for all thermostat.
No key needed! set your own code - change the code, not the cover. The material is also resistant to any stains or yellow tinting that you may see with other cheap plastic covers. Because, who wants to keep up with another key? This thermostat has 3-digit combination lock with a changeable code which makes it easy for you to customize. Easy to install - comes with drywall anchors and screws.

1. Honeywell Home
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White, Honeywell Home Honeywell CG512A1009 Large Thermostat Guard with Inner Shelf to Prevent Tampering
#adHoneywell Home #ad - Ultra clear acrylic resin cover and base resists the yellowing effects of chemicals and UV-light. Fits all Honeywell and most other thermostats. Clear plastic cover that resists yellowing; The Honeywell CG512A1009 Large Thermostat Guard provides the ideal defense in preventing others from tampering with your heating and cooling options.More information #ad
Protects unwanted changes to AC/Heating preferred settings. Key lock with inner shelf to prevent tampering.Brand | Honeywell Home #ad |
Manufacturer | Honeywell #ad |
Height | 7.25 Inches |
Length | 3.38 Inches |
Weight | 1.26 Pounds |
Width | 9.75 Inches |
Part Number | CG512A1009/C |
Model | CG512A1009/C |
Warranty | 1 year product warranty. |
More information #ad
2. BISupply
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AC Thermostat Lock Box Cover Thermostat Guard with Lock – 9.9 x 4.1 x 6.1 Inch, BISupply AC Thermostat Cover with Lock
#adBISupply #ad - Easy to install: there are 2 separate parts – the back plate opaque piece mounts to the wall, only install clear cover and not back plate; Mounting screws included to affix to any surface; Phillips screwdriver required for installation, your thermostat mounts on the back plate, and the cover locks on the back plate; To install without removing thermostat from wall, not included.Fits your thermostat: fits over existing thermostats up to 8.
More information #ad
2” x 3. 5” x 4. 6” inch 208cm x 8. 8cm x 11. 8cm – this is the inside dimensions of the ac lock box cover; 1. 5” x 1. 25” inch 3. 8cm x 3. 2cm backside rectangular hole for thermostat wires to wall; Measure your thermostat length by depth by height to ensure correct fitment; Open hinge allows cover to come apart into 2 separate pieces when opened; 9. 9” x 4. 1” x 6. 1” inch 25. 2cm x 105cm x 15.Brand | BISupply #ad |
Manufacturer | BISupply #ad |
Height | 9.9 Inches |
Length | 6.2 Inches |
Weight | 1.19 Pounds |
Width | 4.25 Inches |
Part Number | 0654 |
Warranty | This product has a manufacturer warranty against defects in materials and workmanship for a period of one (1) year from the date of original retail purchase. See our seller return policy for more details. |
More information #ad
3. Honeywell Home
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Honeywell Home Honeywell CG511A1000 Medium Inner Shelf to Prevent Tampering Thermostat Guard, White
#adHoneywell Home #ad - 5" h x 7. Fits rth8xxxx, rth5xxxx, rth6xxxx, rth7xxxx, ct3x family thermostats and other models measuring 6 1/16 W x 5 1/16 H x 2 5/8 D inches or smaller.More information #ad
Clear plastic cover that resists yellowing. Actual size of thermostat guard: 6. 5" w x 3" D. Key lock with inner shelf to prevent tampering. Protect again tampering, damage and unauthorized adjustment of thermostat settings.Brand | Honeywell Home #ad |
Manufacturer | Honeywell Home #ad |
Height | 5.06 Inches |
Length | 6.06 Inches |
Weight | 1 Pounds |
Width | 2.63 Inches |
Part Number | CG511A1000/C |
Model | CG511A1000/C |
Warranty | 1 year product warranty. |
More information #ad
4. Honeywell
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Honeywell Thermostat Guard Clear
#adHoneywell #ad - Inner shelf to prevent tampering. Protects unwanted changes to AC/heating preferred settings. Key lock with inner shelf to prevent tampering.More information #ad
Fits over existing thermostat and other models measuring 8-1/4 in W x 2-3/4 in D x 5-3/4 in H or Smaller. Packaging may vary. Clear plastic cover that resists yellowing.Brand | Honeywell #ad |
Manufacturer | Honeywell #ad |
Height | 11 Inches |
Length | 10.5 Inches |
Width | 12 Inches |
Part Number | FBA_CG512A1009/C |
Model | FBA_CG512A1009/C |
More information #ad
5. BISupply
#ad
7.7 x 3.3 x 4.75 Inch, BISupply AC Thermostat Cover with Lock, AC Thermostat Lock Box Cover Thermostat Guard with Lock
#adBISupply #ad - Package contents: thermostat box cover package includes 1 locking cover for thermostat with base, 1 key, and 8 mounting screws for your convenience. Fits your thermostat: fits over existing thermostats up to 6. 25” x 3. 7” x 2. 7” inch 15. 9cm x 9. 4cm x 6. 9cm – this is the inside dimensions of the ac lock box cover; 1. 6” x 1.8” inch 4. 1cm x 4. 6cm irregular shaped backside hole for thermostat wires to wall; Measure your thermostat length by depth by height to ensure correct fitment; Open hinge allows cover to come apart into 2 separate pieces when opened; 7. 7” x 3. 3” 4. 75” inch 19. 6cm x 8. 4cm x 12. 1cm outside dimensions OD. Decrease your energy bill: the bisupply | medium thermostat guard is an ac lockbox for thermostat control; Constructed of heavy-duty transparent plastic allows you to clearly see your thermostat while preventing anyone from tampering with your heating or air conditioning settings and protecting against unwanted changes to preferred settings in commercial and residential areas such as an office, church, restaurant, school, or home.
More information #ad
No temperature fluctuation: AC control cover is ventilated on all 4 sides to avoid interference with detection of current temperature by your thermostat. Easy to install: there are 2 separate parts – the back plate opaque piece mounts to the wall, and the cover locks on the back plate; To install without removing thermostat from wall, your thermostat mounts on the back plate, only install clear cover and not back plate; Mounting screws included to affix to any surface; Phillips screwdriver required for installation, not included.
Brand | BISupply #ad |
Manufacturer | BISupply #ad |
Height | 7.9 Inches |
Length | 4.8 Inches |
Weight | 0.35 Pounds |
Width | 3.6 Inches |
Part Number | 0630 |
Warranty | This product has a manufacturer warranty against defects in materials and workmanship for a period of one (1) year from the date of original retail purchase. See our seller return policy for more details. |
More information #ad
6. Honeywell
#ad
Honeywell CG512A Large Thermostat Guard with Inner Shelf to Prevent Tampering 2
#adHoneywell #ad - Protects unwanted changes to AC/Heating preferred settings. Ultra clear acrylic resin cover and base resists the yellowing effects of chemicals and UV-light. Fits all Honeywell and most other thermostats.More information #ad
Key lock with inner shelf to prevent tampering. Clear plastic cover that resists yellowing; The Honeywell CG512A1009 Large Thermostat Guard provides the ideal defense in preventing others from tampering with your heating and cooling options.Brand | Honeywell #ad |
Manufacturer | Honeywell #ad |
Height | 11 Inches |
Length | 3.5 Inches |
Weight | 1 Pounds |
Width | 12 Inches |
Part Number | CG512-2pk |
Model | CG512A |
More information #ad
7. White-Rodgers
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Clear, Emerson G10 Universal Locking Thermostat Guard
#adWhite-Rodgers #ad - Available in clear color. To prevent adjustment of the temperature by unauthorized personnel. Lock and key. Thermostat guards are designed for use in offices, churches, restaurants and other public areas.More information #ad
Made of plastic material. Maximum thermostat dimensions 3 1/4" d x 3 1/2" h x 6 3/8" l. Clear Plastic.Brand | White-Rodgers #ad |
Manufacturer | White-Rodgers #ad |
Height | 4 Inches |
Length | 7 Inches |
Weight | 0.8 Pounds |
Width | 4 Inches |
Part Number | G10 |
Model | G10 |
More information #ad
8. TayMac
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Taymac ZTC300 Plastic Thermostat Cover Low Profile, Clear, Large
#adTayMac #ad - Easy installation - lid can be removed for ease of thermostat installation; Can be mounted in any one of four directions. Convenient to use - patented rotating removable hinge makes adjusting the thermostat more convenient by eliminating the need to completely remove the cover.More information #ad
Dimensions - 8-3/8 x 5-7/8 x 3 inches; outer dimensions - 9-3/4 x 7-1/4 x 3-3/8 inches. Patented hinge - includes high strength locking features to ensure that the lid cannot be removed when closed. Inclusions - includes tumbler lock with two keys, mounting screws and anchors.Brand | TayMac #ad |
Manufacturer | TayMac #ad |
Height | 7.25 Inches |
Length | 3.25 Inches |
Weight | 2 Pounds |
Width | 9.83 Inches |
Part Number | ZTC300 |
Model | ZTC300 |
More information #ad
9. STATGUARDPLUS
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Clear SGP201401CL, StatGuardPlus Large Thermostat Cover with Changeable Code Combination. Locking Thermostat Cover Fits Most Sizes 1
#adSTATGUARDPLUS #ad - Guaranteed of any thermostat measuring 7 in wide x 4. 5 in height x 2 in diameter. Made of high quality clear plastic – made of high quality polycarbonate clear plastic means you’ll be able to see straight crystal clear through the lock box to your thermostat to make sure the settings are exactly the way you want them.Prevent unwanted changes to your thermostat – Great for use in offices, churches, restaurants, schools and other public areas to control your energy costs. No more sneaky hands changing your heating and cooling! Fits over existing thermostat – nearly universal fit for all thermostat.
More information #ad
Simply line up the thermostat guard around your thermostat, and the screws and voila! You’re on your way to peace of mind knowing your heating and cooling settings will not be tampered with. Simply line up the thermostat guard around your thermostat, plug in the dry wall anchors, plug in the drywall anchors, and the screws and voila! You’re on your way to peace of mind knowing your heating and cooli heating with drywall anchors and screws. No key needed! set your own code - change the code, not the cover. The material is also resistant to any stains or yellow tinting that you may see with other cheap plastic covers. Because, who wants to keep up with another key? This thermostat has 3-digit combination lock with a changeable code which makes it easy for you to customize. Easy to install - comes with drywall anchors and screws.
Brand | STATGUARDPLUS #ad |
Manufacturer | StatGuardPlus LLC #ad |
Height | 6 Inches |
Length | 10 Inches |
Weight | 0.75 Pounds |
Width | 3 Inches |
Part Number | SGP201401 |
Model | SGP201401 |
More information #ad
10. Honeywell Home
#ad
Clear, Honeywell Home CG510A1019/N Thermostat Guard, 5.88 x 5.88 x 2.5 inches
#adHoneywell Home #ad - Clear plastic cover with built-in lock and a set of keys. Outside dimensions: 5-7/8 w x 5-7/8 H x 2-1/2 D inches. Interior dimensions: 4-7/16 w x 4-7/16 H x 2-1/4 D inches. It protects against unwanted changes to AC/Heating preferred settings. For use with honeywell home thermostats.More information #ad
Brand | Honeywell Home #ad |
Manufacturer | Honeywell International #ad |
Height | 2.5 Inches |
Length | 5.88 Inches |
Width | 5.88 Inches |
Part Number | CG510A1019/N |
Model | CG510A1019 |
Warranty | 1 year limited warranty. |
More information #ad