The Lock Box Universal Thermostat Lock Box With Key is designed to protect your thermostat from tampering, damage, and unauthorized adjustment. With this thermostat cover, you can keep your controller safe and avoid high bills. This thermostat guard is suitable for most thermostats on the market. The outer size of the lock box is 7.3'' * 4.7'' * 2.2'', and the inner size is 7'' * 4.5'' * 2''. It can be used in homes, offices, churches, schools, and industrial environments. Made of superior transparent material, this thermostat lock box has a long service life. It does not change color or turn yellow, ensuring clear internal visibility even after long-term use. The lock box can be installed using two methods: punching or nano adhesive. If you don't want to damage your wall, you can use the nano glue for bonding, which leaves no residue and keeps your wall looking clean. Key Features: Protects thermostat from tampering, damage, and unauthorized adjustment Suitable for most thermostats on the market Long service life with clear internal visibility Two installation methods: punching or nano adhesive