Thermostat Lock Boxes, Covers & Guards
Thermostat Lock Boxes protect your climate control settings from tampering, vandalism, and unauthorized adjustments in commercial and residential spaces. These durable covers feature key or combination locks with clear visibility for easy monitoring. Choose from our wide selection of universal sizes and locking mechanisms – shop Jackson Systems for reliable thermostat protection today.
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MSRP: $37.63You save 51%
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Wire Cage with Baseplate for T22, T26 & T91
Original price was: $89.99.$85.26Current price is: $85.26. -
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Clear Plastic Thermostat Guard Protection for Thermostats
Original price was: $82.99.$70.82Current price is: $70.82.
Choose The Protection You Need
Lock Boxes
Clear, vented polycarbonate with a key or combo lock. Great for visibility and quick access with a key.
- Honeywell TG511A1000 Universal, clear: standard size.
- White-Rodgers F29-0198 Universal, clear: key-lock, mounts vertical or horizontal.
- iO HVAC TGL (combo lock), clear: combination lock option contractors like for shared keys.
Deep / Extended Guards
Extra interior depth for thicker Wi-Fi thermostats or when a wall plate sits proud of the wall.
- Honeywell TG512A1009 Large Universal, clear: large, deeper interior.
- Pro1 IAQ T150 Guard: roomy clear guard sized for many modern stats.
Heavy-Duty Metal Guards
Steel guards and wire cages for gyms, public spaces, and mechanical rooms.
- Johnson Controls GRD10-1R Wire Thermostat Guard: rugged wire cage.
- DiversiTech 585-TG7 Steel Thermostat Guard: compact steel box with solid base.
- DiversiTech 585-TG3 Steel Thermostat Guard: slightly larger steel version.
Trim Rings & Wall Plates
Hide paint lines and oversized wall openings. Use alone or under a guard.
- Honeywell 50022893-001 Cover Plate: simple clean-up plate.
How to Find Your Match
Measure first: width × height × depth of the thermostat including any wall plate/sensor. Add ~½″ to W/H and ~¾–1″ to depth for clearance.
Choose access: keyed cover (keyed-alike for property managers) or combo lock.
Pick the profile: standard vs. deep depending on how far the stat projects from the wall.
Mind ventilation: slotted/vented covers keep temperature sensing accurate. (All the clear guards above are vented.)
Mounting: confirm orientation, anchor to solid backing, and avoid covering nearby returns or supply registers.
