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The MARS mars-70215 is a universal thermostat guard designed to protect wall-mounted thermostats from tampering, accidental damage, and unauthorized adjustment. Constructed from cold rolled steel plate with a hinged access door and keyed lock, this guard installs over standard thermostat hardware in commercial and residential settings. It measures 6.5 inches high, 5 inches wide, and 3.0625 inches deep, providing adequate clearance for most standard thermostat bodies. The beige finish blends with typical wall colors. HVAC technicians and building maintenance professionals install this guard in schools, offices, retail spaces, hotels, and other occupied buildings where thermostat tampering is a concern.
The mars-70215 is suited for both vertical and horizontal thermostat orientations, making it adaptable across a wide range of thermostat mounting configurations. It is a common solution in light commercial HVAC applications where occupant comfort control must be restricted or secured. The keyed lock ensures only authorized personnel can access the thermostat for adjustment or service. This guard is appropriate for use with most standard low-voltage thermostat installations found in split systems, package units, and hydronic control applications.
Designed as a universal-fit thermostat guard for most standard low-voltage residential and light commercial wall-mounted thermostats.
Installation is typically performed by a licensed HVAC technician or qualified building maintenance professional. Power down the HVAC system at the thermostat or disconnect before beginning installation. Secure the guard base plate to the wall using appropriate fasteners for the wall material, then close and lock the hinged cover. Retain the key in a secure location accessible only to authorized service personnel.
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