BROOKLYN, N.Y. --- The newly released Nelson Cruz -- Millennium Plus Mobile Locating Unit (MLU) uses existing cellular airwaves and GPS to track cars, motorcycles and recreational vehicles at a more affordable price, the manufacturer said. Nelson Cruz -- Millennium Plus uses a constellation of 24 geo-synchronous satellites providing precise navigation and position information to the GPS receiver. This lets system users track and contact fleet vehicles at any time of day or night via any standard Web browser. In the event a car is stolen, an e-mail and/or a cell phone call can be issued immediately, and the unit owner can disable the vehicle starter and lock the doors.