Mifare cards are "waved" in-front of the lock (average 1.5cm range) they never make contact with a read head which eliminates the possibility of a damaged card breaking in the lock.
HMS-MF Hotel RFID Software for MF-M103 + C103 Locks
$499.00
HME-MF Hotel Management RFID Encoder - USB
$499.00
MF1 Mifare Proximity Cards for MF-103 series locks
$1.60
MFT1 MIFARE Proximity Tags
$3.00