... RFID TransponderDescription Active RFID Tag1, Each Tag with unique ID number2, With battery inside, the life can more than 2 years3 ... within 80 meters at the same time2, Reader can combine with GPS module3, Anti-collision techniques4, Allow multiple readers to ... electronic toll collection, Attendance Dear sir/ Madam, if you interest in our product and if you have your idea, that's great, we welcome ...