The high-value LMU-700 tracking unit from CalAmp features a small size, superior GPS performance, ultra-low power sleep modes, and three inputs/outputs (I/O). The LMU-700 is a complete vehicle and equipment tracking and communications device that incorporates next-generation, high-sensitivity GPS technology on GSM/GPRS cellular networks for installation in any 12 or 24-volt mobile vehicle. An internal antenna and quality for cellular and GPS eliminate the need for wireless antennas and make the LMU-700 mountable anywhere on the vehicle for simple and low-cost installations. Messages are transported over the GSM/GPRS network with either SMS or UDP messages providing a reliable communication link between the device and application servers. The LMU-700 is designed to drastically reduce cost, power, and size while providing excellent field reliability.