2 locking methods, password: Initial password: 000, keep the locked, swing the levers from position A to position B, confirm the password you changed, reset the levers, and complete the password setting Keylock: Regardless of whether the password is correct or not, the thermostat defense box can be unlocks with a There are two methods to loss or forgotten password, which is more thoughtful Protect your thermostat with this lockable cover to secure Feature: The design of the large thermostat cover with a prevents unauthorized adjustments and ensures stable temperature settings, making it important tool for maintaining good temperature control This clear thermostat cover is produced of acrylic for easy viewing of settings, while providing sturdy defense against tampering and damage Very suitable for use in offices, schools, hospitals, and shopping centers, where precise temperature control is vital for comfort and efficiency, Manufacturer: YROHGKPN