Made specifically for trailers, this GPS tracking device takes power management to new levels with ultra-low sleep currents resulting in a 5-year battery life. The sealed and rugged enclosure is designed to withstand the harshest outdoor environments and is made possible by superior internal antennas for both cellular and GPS. Whether you're looking for a single unit or tracking large-scale, GPS and Track makes GPS affordable to everyone, with all the features you want and need and no contracts