... s NameGPS Reader with Active RFID TransponderDescription Active RFID Tag1, Each Tag with unique ID number2, With battery inside, ... protect against harsh environmentRFID reader1, GPS/RFID reader can detecting multiple tags in a region ... 80 meters at the same time2, Reader can combine with GPS module3, Anti-collision techniques4, Allow ... your inquiry. Thank you !! GPS Reader with Active RFID Transponder