Large Thermostat Guard provides the ideal defense in preventing others from tampering with your heating and cooling options. An elevated peace of mind is established as users will no longer have to worry about any unauthorized access that may result with adjustments or damages. Installation is near effortless and the Guard will fit on all Large Sized Honeywell thermostats and a host of others. The actual casing is chemical and UV-resistant which allows users to deploy their cover all year round without the slightest concern. A steadily constructed key and lock function will perform admirably as a versatile defense. Eliminate the thought of others having access to your personal thermostat with Honeywell's highly affordable and practical solution.