Function:
1) Passage funcion: can set the
door to passage function by code.
2) 9 digitals maximum ---combined
by numbers from 0-9.
3) Low voltage indication: inform
the user to change batteries automatically
4) Emergency: use mechanical key
to unlock under emergent situation.
5) Alarm: alarm will be on for 1
minute if you enter incorrect code
for 3 times. In such case each key
will lose their function during
that period.
6) Code: you can enter any number(unlimited)
before you enter the correct code.
