Designed for embedding into products manufactured by third-parties, the 
M5100 Module is a 13.56MHz low cost RFID reader module in a 
printed circuit board form factor.
Its features are: 
Reads MF one compatible transponders. 
Read Distance: 5cm for cards, and 4cm for keytags.
Small Unit size: 23mm x 30mm x5mm
On board duel color LED (Red/Green).
On board buzzer.
Integrated RFID coil antenna. 
compatible proximity cards and transponders available on the general market
Output format optional:WG26,WG34,RS232