What companies would you recommend I contact?
Convergence Systems Ltd. offers a passive ultrahigh-frequency (UHF) RFID reader with 3G mobile connectivity and GPS. In addition, Kathrein RFID makes a mobile passive UHF RFID reader with 3G connectivity as well.
—Mark Roberti, Founder and Editor, RFID Journal
What Can You Tell Me About RFID Sensor Range? »