The FLEXO.code lock is a versatile and innovative design lock that offers individual time control with adjustable locking time and up to 999,999 code variations. It is possible to easily replace your current mechanical lock with the FLEXO. code lock since it has the same dimensions as mechanical locks (16x19mm). The code length is 4-6 digits. Other lock features include access to an external battery (2x VARTA 1/2 AA), definable lock function time, high-quality keypad, and low battery indication.