Finding the best locking thermostat cover suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Reviews
1. Emerson F29-0222 Universal Thermostat Guard, Metal, Ring Base
Feature
Locking thermostat guard to protect your thermostat from unwanted tamperingTamper-resistant, hinged design furnished with one key
Can be mounted vertically or horizontally
Beige enamel finish over heavy-duty steel enclosure
Fits all Emerson and White Rodgers thermostats
Description
The White-Rodgers F29-0222 durable metal guard is designed for government, military, industrial and educational applications to prevent unwanted adjustment of the temperature by unauthorized personnel. Each model furnished with one key and can be mounted vertically or horizontally. Fits all Emerson/White Rodgers thermostats.2. Emerson F29-0225 Thermostat Guard with Mounting Plate, Clear Plastic
Feature
Locking thermostat guard to protect your thermostat from unwanted tamperingTamper-resistant design furnished with one key
Clear plastic models for applications that need the thermostat visible
Fits Emerson/White-Rodgers 1C20, 1C21, 1C26 series thermostats
Description
The White-Rodgers F29-0225 plastic thermostat guard is designed for government, military, industrial and educational applications to prevent unwanted adjustment of the temperature by unauthorized personnel. This thermostat guard is furnished with one key and can be mounted vertically or horizontally. Fits Emerson/White-Rodgers 1C20, 1C21, 1C26 series thermostats.3. Venstar Locking Cover for Slimline Thermostats
Feature
This Locking Ring prevents the front door on a Venstar Platinum thermostats from being opened by unauthorized users.5-second installation for lockbox security without the ugly box
Compatible with T2700, T2800, and T2900 Platinum Commercial series thermostats
Enables total lockdown or limited adjustment
Secure keyed lock
Description
Venstar Locking Cover for Slimline Thermostats This Lock Ring prevents the front door on a Venstar thermostat from being opened by unauthorized users. Override and Up/Down buttons are accessible on commercial thermostats while using the locking cover. Supplied with 2 locking cover keys and designed for easy slip on/off installation. Requires no tools to be installed and the thermostat does not need to be removed or any wiring disconnected to install. All Venstar Slimline Platinum thermostats allow for keypad lockout to render the buttons inoperable. In addition the Venstar Slimline Platinum Commercial thermostats have set point limiting features that make the Lock Ring the perfect choice. Locks thermostat to the wall . Prevents the door from opening . Override, Up/Down buttons accessible on commercial thermostats while using locking cover . Thermostat security settings allow limited or no button use . Supplied with 2 locking cover keys . Designed for easy slip on/off insta4. BRAEBURN 5970 Universal Thermostat Guard with Keyed Lock
Feature
Tamper Resistant Design Prevents UnauthorizedStrong Durable Clear Plastic Protects Against Damage to Thermostat
Two Keys Included
Description
Model 5970 The brighter choice Universal Thermostat Guard. UniversalFits Virtually All Thermostats One Thermostat Guard Replaces Them All (See back for competitive models) Tamper Resistant Design Prevents Unauthorized Adjustment of Thermostat Settings Strong Durable Clear Plastic Protects Against Damage to Thermostat For New and Existing Thermostat Applications Slim Contemporary Style Two Keys Included.
5. Honeywell CG512A1009 Large Thermostat Guard with Inner Shelf to Prevent Tampering
Feature
Fits all Honeywell and most other thermostatsClear plastic cover that resists yellowing
Key lock with inner shelf to prevent tampering
Protects unwanted changes to AC/Heating preferred settings
Ultra clear acrylic resin cover and base resists the yellowing effects of chemicals and UV-light
Description
Fits over existing thermostat. Fits all Honeywell and most other thermostats. Clear plastic cover resist yellowing. Key lock with inner shelf to prevent tampering.6. StatGuardPlus Thermostat Guard with Changeable Code Combination Lock
Feature
Combination lock with changeable codeFits over existing thermostat
Stylish high quality clear plastic
"Open" hinged
Fits thermostats up to 7 in. W x 4-3/4 in. H x 2-1/4 in. D
Description
Thermostat cover guard with changeable code combination lock. Combination lock with changeable code. Fits over existing thermostat.7. Safety Technology International, Inc. STI-9110 Thermostat Protector with Key Lock - Clear Polycarbonate Enclosure
Feature
Helps stop vandalism, damage and tamperingHoles in the frame allow air to circulate freely
All thermostat covers have a key lock assembly
Easy and quick installation
Three year guarantee against breakage of polycarbonate in normal use
Description
Safety Technology International, Inc. - STI 9110 Thermostat Protector with key lock. Especially useful in public areas; this clear polycarbonate protector helps stop vandalism, damage and tampering of large thermostats and energy sensors. Molded of clear, 1/8" thick, heavy-duty polycarbonate material. This protective cover is ideal for areas where abuse is a problem: vandalism, accidental damage or costly annoying tampering by employees and others. Includes a lock and key assembly for added protection against abuse. Easy to install for either flush mount applications or surface mount installations with a 2-inch spacer. Holes in the frame allow air to circulate freely for proper operation of protected thermostats or energy sensors. An inner wall on the frame prevents tampering with dials and levers. Comes complete with all mounting hardware. This super tough unit is backed by a 3 year limited warranty against breakage and damage in normal use. Safety Technology International, Inc. "We protect the things that protect you"8. Honeywell CG510A Thermostat Guard, Small
Feature
Clear plastic cover with built-in lock and a set of keysFits the following Honeywell thermostats
Covers CT87 (Round) models
Covers CT30, CT31 and CT33 models without the wall plate
RTH5100B (see note above)
Description
Small, clear thermostat guard prevents unwanted/unauthorized temperature on your thermostat. Includes built-in lock and key. Fits the following Honeywell thermostat models: CT87, CT3x without the wall plate and the RTH5100B (guard must be removed to access this product's battery door). May fit other thermostats of similar size. Interior dimensions: 4-7/16 W x 4-7/16 H x 2-1/4 D (inches). Outside dimensions: 5-7/8 W x 5-7/8 H x 2-1/2 D (Inch). Includes: cover, base, lock and key, and mounting hardware. 8.8 x 13 x 9.5 inches (Packaged product)9. Emerson F29-0198 Universal Locking Thermostat Guard, Clear
Feature
Protect your thermostat from unwanted tampering or adjustment of temperature by unauthorized personnelDesigned to fit most Emerson / White-Rodgers thermostats
Clear plastic guard box for applications that need the thermostat visible
For use in offices, churches, restaurants, schools and other public areas
Includes one key, guard box, mounting plate and ring
Description
Locking thermostat guard to protect your thermostat from unwanted tampering.10. Emerson G20 Universal Locking Thermostat Guard, Clear
Feature
The product is easy to use and highly durableThe product has easy handing
Large, Universal Thermostat Guard, Transparent Cover With Mounting Plate & Mounting Ring, 5.3"H x 8.25"L x 3.5"D
Lock and key
Clear Plastic
Maximum thermostat dimensions 3 1/2" d x 5 3/8" h x 8 1/4" l
Description
White-Rodgers G20 Large Thermostat Guard prevents unauthorized adjustments to your thermostat. Maximum thermostat dimensions: 3 1/2" d x 5 3/8" h x 8 1/4" l.11. Lux Products BB3001-004 Large Locking Thermostat Guard, Clear
Feature
Fits all thermostatsLimits unwanted access
Tamper resistant, strong durable plastic
One key included
9.5 X 5.75 X 4 -Inches
Description
Lux Products BB3001-004 Large Locking Thermostat Guard, ClearFits all thermostats
Large size - 9.5 W x 5.8 T x 4 D (inches)
Limits unwanted access
One key included
Tamper resistant, strong durable plastic
Need more information on this product? Click here to ask.
Dimensions: 9.5 x 4 x 5.8.
12. Heavy Duty Metal Thermostat Guard with Ring Base
Feature
Genuine OEMSupco
BTG-UWM
Description
Metal Guard with Ring Base.. Universal Locking Thermostat Guard. Accomodates thermostats up to 6-5/8" x 4-1/2" x 3-1/2". Replaces Bramec # 13011.Inside Height (In.)6 3/4"Inside Depth (In.) 3 1/2"Inside Width (In.)4 1/2"Base - Ring base included.Finish Back - TanFinish Front - TanMaterial - Heavy Duty SteelMount - Horizontal or VerticalVented base to allow for optimal performance while limiting unwanted access and elimminate accidental temperature changes.Includes Box, Mounting Hardware, 1 key.Protects and covers virtually any thermostat.13. Supco Btg-RK Thermostat Guard
Feature
Hi-impact plasticClear plastic thermostat guard
Mounting hardware
Keyed alike (using key/part # F336)
Vertical or horizontal mounting
Description
Supco offers a complete line of metal and plastic thermostat guards for the HVAC industry. Manufactured with the highest quality materials and production standards to ensure rugged dependability and attractive appearance14. Lux Products BB2001-005 Medium Locking Thermostat Guard, Clear
Feature
Fits thermostats no larger than 5.25W x 4.50H x 3.0DMedium size - External Dimensions 6.5W x 5.875H x 3.25D
Limits unwanted access; Tamper resistant, strong durable plastic
One Key and mounting screws included
Larger Guard available See Model BB3001
