Trailers present a unique challenge since they may or may not provide live power to the tracking system. The Trailer Tracking unit available from AMTEL is designed to operate without power for a very long time since it incorporates three distinct features:

• A special processor that manages power efficiently.

• A battery pack that can operate the unit for weeks without external power.

• A solar charge unit that can keep the batteries fully charged at all times.

• The Trailer Tracking Unit (TTU) is designed to be completely self-contained and comes with many unique features, including:

• Can operate with power from the cab battery, the internal battery pack or the solar cells integrated in the unit.

• Unit is designed to be aerodynamic to reduce drag on a trailer while in motion.

• TTU is designed for location on the roof of the trailer; in the front, center or rear of the trailer unit.

• In the rear mount application, it is provided with three amber lights that provide a natural camouflage.

• In center mount applications, the unit is not visible from street level and looks like a skylight, if observed.

• TTU operates full time when connected to Cab Battery. However, as soon as cab battery is disconnected, the unit goes into Hibernation, conserving power and relying on the power available from the battery pack.

• The system awakes from hibernation as soon as there is a movement and send a message to the clients cell phone, pager or PDA registered on the website.

• System can provide a complete Start/Stop report on trip or history of the trailer unit.

• System is capable to monitor doors. And in case somebody tries to tamper with it, an alarm is sent to the cell phone or pagers or any other PDA through the wireless network.

• System provides location of trailer automatically as per schedule on the website. Also new updates can be requested on a daily basis (or more often if configured in the system).

• The client can program the schedule for the periodic status reports.