ProLogic Safe LockThe ProLogic is a very reliable and robust safe lock system ideal for most applications.The ProLogic features SecuRam’s rugged stainless steel construction and an OLED Screen for easy viewing and user feedback.Simple to Use and Reliable Enter your 6 digit code and turn the safe handle. That’s it.Easy keypad programming allows for code changes, additions, and deletions. Enable and Disable function also available.Battery Changes are simple. Slide upward on the EntryPad to release from snapfit mounting system to change the 9 Volt