Networkfleet, Inc. announced Networkfleet 4200, a low cost GPS vehicle tracking system for commercial and government fleets. The new system is designed for fleets that need reliable location tracking, but do not require the patented remote engine diagnostics offered by the Networkfleet 3500 wireless fleet management system. Both products use the same full-featured, easy-to-use Web-based application to provide access to vehicle information. The Networkfleet 4200 gives fleets a vehicle tracking system that includes a rugged, automotive-grade device backed by Networkfleet's full service and support. Designed by Networkfleet's experienced telematics engineering group and built in the U.S., the 4200 is tamper evident and hermetically sealed, allowing it to withstand harsh environments. The 4200 works on all vehicles and is built to pass SAE J1455 certification, an industry standard for electronic equipment design in heavy-duty vehicles.