Honeywell Home TG512A1009/U Large Universal Thermostat Guard, Clear Cover

Protect critical HVAC controls with the Honeywell Home Large Universal Thermostat Guard, a clear, tamper-resistant enclosure designed for commercial and institutional environments. This versatile thermostat guard keeps settings intact and prevents unauthorized adjustments, vandalism, or accidental changes—helping you maintain energy efficiency and tenant comfort. The TG512A1009/U supports thermostats up to 8.25 in and features a rugged double-wall PC and steel construction for enhanced impact resistance. A tamper-resistant keyed lock provides controlled access—keys can only be removed in the locked position—while the clear cover preserves visibility for monitoring and security camera surveillance. Vents in the guard base allow proper airflow so thermostat sensors continue to perform accurately, avoiding false readings that can compromise HVAC performance. Easy to mount vertically or horizontally on a wall or exposed junction box, the Versaguard enclosure is ideal for retail, education, hospitality, healthcare, and multi-family applications where security and reliable temperature control are essential. Protect your investment and simplify building management—order the Honeywell Home Large Thermostat Guard today or contact our sales team for bulk and installation options.

• Secures thermostats against tampering and unauthorized adjustments, preserving HVAC settings and reducing service calls
• Durable double-wall PC and steel construction resists impact and vandalism for reliable long-term protection
• Tamper-resistant keyed lock (key removable only when locked) ensures controlled access and simplified maintenance
• Clear cover maintains visibility for surveillance and monitoring while allowing easy thermostat reading and operation when unlocked
• Vented base preserves accurate temperature sensing and HVAC performance by allowing unrestricted airflow