The thermostat lock box with two keys can prevent tampering, damage, and unauthorized adjustment of the thermostat settings. Keep your controller away from annoying fingers and protect your thermostat from high bills. Suitable for most thermostats: Household thermostat boxes are suitable for most thermostats. The outer diameter of the thermostat lock box is 7.87 '* 5.51' * 1.97 '. The actual available dimensions are 6.5 "high x 4.72" wide x 1.65 "D. As long as the size is less than or equal to 6.5 "high 4.72 "W x 1.65" D, it is suitable for all shapes of thermostats. Please check the size before purchasing. Long service life The transparent constant temperature lock box is made of high-quality acrylic, which is superior to plastic transparent constant temperature lock boxes. It will not change color or yellow, and can maintain clear visibility inside after long-term use. [Easy to Install] The open thermostat cover allows for installation without removing the thermostat from the wall. Simply drill holes around the existing thermostat to install it in the correct position. You can install this thermostat cover horizontally or vertically to fit your thermostat. Widely used: There is a thermostat everywhere! The Young Dance thermostat lock box greatly helps to control energy usage. It can help you control energy use in restaurants, offices, churches, schools, and industrial environments.