Resideo TG511A1000 Thermostat Guard Medium Clear 5-1/16

The Resideo TG511A1000 is a medium-size Versaguard Thermostat Guard designed to protect wall-mounted thermostats from tampering, accidental adjustment, or physical damage. It features a clear acrylic ring base paired with an opaque polystyrene wall plate, giving visibility to the thermostat while restricting unauthorized access. Outside dimensions are 7-1/2" W x 6-1/2" H x 2-15/16" D, with an inside clearance of 6-1/16" W x 5-1/16" H, and the unit weighs 1.1 lbs. It mounts to a wall or junction box and is suited for residential applications where thermostat settings are frequently changed without authorization. This is a universal-fit guard compatible with Honeywell Home and Resideo thermostats, sized to fit models in the TH3000, TH4000, TH5000, TH6000, and TH8000 series, as well as similar-sized units. The OEM reference number is TG511A1000/U. Installation is DIY-friendly and the guard can be mounted vertically or horizontally depending on wall layout or junction box orientation.