Description
The MA-Line MA-BTGUK2 is a universal clear hi-impact plastic locking thermostat guard designed for HVAC residential and commercial applications where thermostat protection against tampering, vandalism, and unauthorized temperature adjustment is required. The MA-BTGUK2 ships with both a solid base (tan) and a ring base (clear), providing two installation options to accommodate a wide range of thermostat mounting configurations, and supports vertical or horizontal mounting with all necessary hardware included. Interior dimensions for the solid base are 8-1/4″ H x 5-3/8″ W x 3-1/2″ D; the ring base interior measures 8-1/8″ H x 4-5/8″ W x 3-5/8″ D, providing ample clearance for most standard programmable and non-programmable thermostats.
Features
- Universal Fit — Dual Base System — Ships with both a solid base (tan) and ring base (clear) to accommodate the widest range of thermostat mounting configurations; solid base interior: 8-1/4″ x 5-3/8″ x 3-1/2″, ring base interior: 8-1/8″ x 4-5/8″ x 3-5/8″.
- Keyed Locking Security — Hi-impact clear plastic guard features a keyed lock to prevent unauthorized temperature changes, tampering, or accidental damage in commercial, institutional, and multi-tenant environments.
- Vertical or Horizontal Mounting — Mounting hardware included; installs in vertical or horizontal orientation to suit any wall or equipment mounting scenario without additional hardware.
Wide OEM Cross-Reference - Compatibility — Direct replacement for Honeywell TG501A1002, Robertshaw A90-068, Mars 70220, White Rodgers F29-0199, DiversiTech TG2-UK2, and TPI TG3 thermostat guards.
- Hi-Impact Clear Plastic Construction — Durable clear plastic body allows thermostat display and status to be viewed without unlocking the guard, while the hi-impact material resists cracking, yellowing, and physical abuse in demanding HVAC environments.












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