Access Yale Glass Door Digital Lock can be accessed through PIN code, RF card key or remote control Suitable to install on glass doors with 0.9-1.3 cm thickness Unique one time visitor code lapses after single operation Magic mirror function where keypad lights up when touched Safe Thumb-turn: to improve security, inside turn knob can be opened only if a user pushes the two safe button suffused to the Thumb-turn knob simultaneously High-temperature alarm detects if there is a fire inside Fake PIN code to help you mask your real PIN code Clip type bracket: Easy installation by clip type bracket with a very strong double-side tape PIN code: 4- 12 digits; Proximity card keys: Up to 40 cards