Transparent PS protective case - Made from PS material, this protective case offers dependable quality and durability while shielding your thermostat and keeping the display clearly visible. Safe lock box with key - Provides safety from tampering, damage, and unauthorized adjustments. Includes 2 keys for easy access and control. Compatibility - Fits most thermostats on the market. Suitable for use in homes, offices, churches, schools and industrial environments. Clear visibility - The transparent PS material ensures the thermostat remains clearly visible over time, with no discoloration or yellowing. Use scenarios - Home use: prevents accidental thermostat changes by children or pets while maintaining easy visual monitoring. - Office or classroom: protects from tampering and unauthorized adjustments; facilities staff can access as needed. - Public or industrial settings: safeguards thermostats in high-traffic areas such as churches, schools, or industrial facilities while preserving full visibility.