Cheap And Discounts 12V RFID Barcode 2D QR Code Reader Access Control Reader Wiegand TTL RS232 RS485 Interface 125Khz/13.56Mhz RFID QRCode Reader Wholesale. Buy Directly From Merchant Asia-teco Access Control Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.