Sargent & Greenleaf 6120 Electronic Safe Lock One million codes to choose from. One master code and eight user codes. Does NOT have a Master Reset Code unless one is added to the lock after installation and before the default Master Code (123456#) is changed for the first time. Deadlocking, motor driven bolt withstands over 225 lbs. of end pressure. UL Listed Electonic Safe Lock. Penalty lockout feature shuts the lock down for five minutes of four or more incorrect codes are entered in a row to deter random code entry attempts.