Mf Card Lock

Features:
Card type: Mifare one card (S50 or S70 card)
Power supply: 4pcs 7# battery
Function and features:
Public type (open type):
No special (personal) user card
Any Mifare card can be used as user card and each user card is one time
Private type (standalone type):
Appoint a user card
Special and personal user card
Only use this user card or master card can open lock
When user card is lost:
Use master card to cancel the old user card and set up a new user card
Two grades manage: manage card and user card
Direct set up and issue card on lock
After set up card, read card on lock to open door
Extend function: data record and collect data
Extend function: use together whole system to come true one card management