Honeywell Home Thermostat Guard, 5.88 x 5.88 x 2.5 inches Clear

• Clear plastic cover with built-in lock and a set of keys.Fits Thermostats 4.375H x 4.375W inches or Smaller
• For use with Honeywell Home thermostats. It protects against unwanted changes to AC/Heating preferred settings
• Covers CT87, CT30,CT31,CT33 (Round) models without the wall plate
• Outside dimensions: 5-7/8 W x 5-7/8 H x 2-1/2 D (inches)
• Interior dimensions: 4-7/16 W x 4-7/16 H x 2-1/4 D (inches)

Small, clear thermostat guard prevents unwanted/unauthorized temperature on your thermostat. Includes built-in lock and key. Fits the following Honeywell thermostat models: CT87, CT3x without the wall plate and the RTH5100B (guard must be removed to access this product's battery door). May fit other thermostats of similar size. Interior dimensions: 4-7/16 W x 4-7/16 H x 2-1/4 D (inches). Outside dimensions: 5-7/8 W x 5-7/8 H x 2-1/2 D (Inch). Includes: cover, base, lock and key, and mounting hardware.