Feature:1. Thermostat Box: A thermostat cover with 2 keys can prevent tampering, damage, and unauthorized adjustment of the thermostat setting. Keep your controller away from annoying fingers, protecting your thermostat.2. Universal Design: The outer size of the thermostat protective cover with a lock is 5.91 x 4.72 x 2.17in, and the inner size is 4.92 x 3.74 x 1.97in, which is suitable for most thermostats on the market. It can be used in homes, offices, schools and industrial environments.3. Good Acrylic: Transparent acrylic temperature lock box do not fade or turn yellow, and even if used for a long time, they can maintain clear visibility inside.4. Easy Installation: Drill hole and install, or use adhesive. If you don't want to damage your wall, you can use tape to fix it.5. Control Energy: This thermostat cover can help you control energy use in commercial or residential environments. Without a key, no one can access the thermostat and change its settings. This helps to control energy use.Specification:Item Type: Thermostat Lock BoxProduct Material: AcrylicApplication: For 4.92 x 3.74 x 1.97in or smaller thermostat. .Package List:1 x Thermostat Lock Box2 x Key (There is a key ring between keys.)4 x Screw4 x Wall Plug4 x Tape