- Reliable and durable: Made of PS material for long-lasting protection of your thermostat. - Enhanced security: Includes 2 keys; prevents tampering, damage, and unauthorized adjustment of thermostat settings. - Broad compatibility: Designed to fit most thermostats on the market; suitable for homes, offices, churches, schools and industrial environments. - Clear visibility: Transparent design allows easy monitoring of the thermostat display; remains clear over time without discoloration or yellowing. - Home use scenario: In a private residence, prevents children or guests from changing thermostat settings while keeping the display easy to read. - Office use scenario: In a shared workspace, stops unauthorized adjustments by staff or visitors, helping maintain a consistent environment. - Public facility scenario: In churches or schools, protects thermostat controls in common areas and ensures controlled access to temperature settings.