1.[Tamper-Resistant Design]The thermostat lock box with 2 keys prevents tampering, damage and unauthorized adjustment of thermostat settings. Better protect your thermostat from unauthorized settings and avoid artificially high costs. 2.[Premium Grade Acrylic]The thermostat lock box is made of high quality acrylic, superior to plastic clear thermostat cover. No discoloration or yellowing. The thermostat lock box keeps the interior clearly visible even after long-term use.The thermostat lock box is waterproof and easy to dissipate heat, easy to clean, and neat while protecting the thermostat. 3.[Preserve Temperature Precision]Our thermostat lock box features precision-engineered grooves on all four sides, ensuring that the thermostat inside maintains accurate temperature readings. This design prevents interference or obstruction, allowing your heating and cooling system to function optimally without compromise 4.[Very Suitable for Various Thermostats]This thermostat lock box measures 7.28'W x 4.72'H x 2.2'D, compatible with most thermostats and HVAC systems. Whether it's for your home, apartment, school, office, restaurant, hotel, or rental properties, our ac thermostat lock box cover finds its place everywhere, ensuring optimal protection and security