The TTU-700 high-value tracking unit from CalAmp features a small size, superior GPS performance, and an internal 57 Ah battery. The TTU-700 is a complete trailer and asset tracking and communications device incorporating next-generation, super-sensitive GPS technology on GSM/GPRS, CDMA 1xRTT and HSPA cellular networks for installation on the exterior of any mobile asset. Superior internal antennas for both cellular and GPS eliminate the need for wired antennas and make the TTU-700 mountable virtually anywhere on the trailer for easy, inexpensive installations. Messages are transported across the cellular network using enhanced SMS or UDP messaging providing a reliable communications link between the device and your application servers. The TTU-700 is designed to dramatically reduce cost of ownership, power and size while providing improving field reliability.