1) Code from 1 to 9 digits
allowed, any number combination
2) Passage function: for when
restricted access is not required
3) Any incorrect code entered
for 3 times leads 60-second
alarm signal
4) Security: any numbers can
be entered before correct code
5) Key override: If there is
anything wrong, mechanical key
still can override.
6) Power supply: 4 x AA alkaline
batteries
7) Low battery alarm
