Thermostat lock box is made of strong and chemical-resistant acrylic plastic. This locking thermostat cover offers excellent durability, UV resistance, and anti-yellowing properties. Clearly view thermostat settings at all times. Thermostat lock box with key prevents unauthorized adjustment, tampering, and damage to thermostat settings by children, tenants, or the public. Enjoy reduced energy costs and significant savings for your family. Thermostat lock box is designed to accommodate thermostats that measure 7.28 inch W x 5.75 inch H x 2.75 inch D or smaller. Whether it is for your home, apartment, office, school, hotel, restaurant, or industrial space, our keyed air conditioner lock box cover will find its place everywhere, ensuring optimal protection and security. This wall-mounted thermostat lock box features a four-sided venting design to prevent interference with temperature detection, ensuring accurate performance of the thermostat without being affected. Thermostat lock cover can be installed without removing the thermostat; it may be necessary to install the thermostat in an off-center position within the thermostat lock box to access the battery cover on some models. Color: white. Material: acrylic. Package contents: 1 x thermostat key box. Due to different batches, the styles and colors of the screws and expansion tubes are sent randomly. Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.