Besides the locks system, there are other accessories that are needed for the system to work properly.
Proximity Cards comes in a number of technologies. They are:
- EM Proximity Cards
- HID Proximity Cards
- MiFare Proximity Cards
- HID iClass Cards
Whatever the technologies, the cards normally comes in 3 forms:
- thin card (credit card size and thickness?
- thick card (clamshell type - same size as credit cards only thicker)
- tags (size of a 20 cents coin)