2 types of install: vertical and horizontal type.
2 modes: Home mode ( for family use ) & Security mode (for office use )
No wire, only 4 x AA batteris.

4 in 1:
Password: 4 sets of Password for both modes. It could provide independently ID to each password for add or delete separately and good for management.
Card key: 30pcs of card key or tag for Home mode & 200pcs of card key or tag for security mode. It could provide independently ID to each card or tag for adding user or delete user separately and good for management. Only accept Mifare and Felica. Security mode provides maximum 10 pcs of mother card keys to manage all the cards and passwords.

Key overide for emergency use:
3 emergency keys

Emergency power input connector:
When it run out of battery then we can easily buy the normal 9V battery ( square one ) and just simply touch with the connectors on top of numbers button then the battery will start to provide power to it.

Safety button for indoor:
To avoid children or someone who press the open button by accident from inside.

auto lock:
It will re-lock in 2 seconds after close the door. It will also re-lock in 7 seconds once after press the open button only.

Buzzer ( noise is up to 80 db ) :
Low battery, tongue is not in the right possion and when the triger is not in the right possion.

Temperature sensor:
When it senses 62 degress, it will automatically unlock.