The TTU-1280 high-value tracking unit from CalAmp features a small size, superior GPS performance, and an internal 57 Ah battery. The TTU-1280 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.