Features:
1) Perfect keycards classifying and grouping functions
2) Uses Siemens encryption card as the IC keycard
3) Power - saving: 4 alkaline batteries (size AA, 1.5V) are capable for unlocking more
than 20,000 times
4) 224 records can be saved
5) Each record has complete time and date label
6) Card owner's information and card issuer's information are included
7) Patented mortise with a clutch, provides higher security and reliability
8) Low voltage warning
9) Hidden high-security cylinder