RF Read Module
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RFID 125Khz EM ID Long Distance Card Reader Module TK4100 EM4100 Wg26/Wg34 Rs232 interface
US $55.00Product Description Frequency: 125 KHZ Antenna inductance: 170 uh Support the chip: EM4100, TK4100 and Compatible chip Voltage: 12v (Linear power supply) The antenna diameter: 13 cm Interface: RS232/WG26/WG34 Card read...US $55.00