Hit any button to activate key rting programming.
Hit next key within 10 seconds during programming,
otherwise green light goes off then you have to start over.
You can create total 20 sets of codes
(regular user codes plus temporary codes).
Master
The beeping sound when pressing keypad can be muted.
But you will still hear motor turning and programming beeping.
A security feature for you when you are leaving your home for vacation.
It will restrict all user codes, back-up keys and inside knob turning until
master code is entered on keypad, otherwise the lock will sound an alarm
with red flash light.