The feature-rich LMU-3030 tracking unit from CalAmp features small size, superior GPS performance, OBD-II interface, backup battery, and a 3-axis accelerometer. These features allow the LMU-3000 to access vehicle diagnostic interface data, track speed and equipment location, as well as detect sudden braking, curves, acceleration, and pre- and post-impact data capture. Internal antennas and quality for cellular and GPS eliminate the need for professional installation and make the LMU-3000 quick, easy, and inexpensive to install. Messages are transported over the cellular network using either SMS or UDP messages, providing a reliable communication link between the device and application servers. The LMU-3030 is designed to drastically reduce cost, power, and size while significantly improving reliability in 12-volt passenger or light-duty cargo vehicles.