Model ak-rfm004 This 4 antenna port uhf rfid module is equipped with impinj r2000 chip, it could work in long range reading uhf rfid Reader. We could provide api customer port, and standard sdk. It will help you develop the right rfid device to meet whole System quickly. Specification: Size: 69mm x 43mm x 10.50mm (l*w*h) Weight: 50g Power consumption: 1.5a peak Working tempreture: from -20 Stocking tempreture: from -40 Physical port: 1 x mmcx, rf connector, 15pin connector(electricy source, communication, gpio) Working frequency: ultra high frequency (840-960mhz), defauty frequency (920-925mhz), the frequency could be customized for different country. Click to make an enquiry 50g/pc