Audit Lock(Model 6126/6127) Features & Benefits: One million codes to choose from Field programmable via keypad (Dual user, Multi user, Manager/Employee, Time Delay, Open Window, etc) Operates on 9-volt batteries located in the keypad Audible signal from the lock every time the bolt extends to the locked position Low battery indicator signals when batteries need to be replaced Snap-in touch key reader assures fast and accurate audit data transfer 400 event time and date-stamped audit trail (requires keypad extension and audit trail PC software) Duress alarm connection (requires optional duress module) Uses S&G's Magic Module® footprint to match the mounting dimensions of most mechanical and electronic safe locks