Security Concepts WorldTracker RF 1 watt system tested and used by NASA in a field experiment.
"The system seemed to work well, even in the direct Arizona sun at 100 deg F. And the range was fine with the big antennae."
Brent J. Bos, Ph.D.
NASA Goddard Space Flight Center
http://www.trackingtheworld.com/wtrf.htm
Enclosed are details for our new GPS/GSM Fleet Manager.
MAPPING AVAILABLE FOR MOST OF THE WORLD
The new WorldTracker Fleet Manager is an advanced Automatic Vehicle Location (AVL) device that combines GPS technology with GSM/GPRS with other wireless communication technology for real time tracking, polling, security and fleet management purpose.
This new system provides online alerts, anti-theft, trip replay, reports,
two way communications and vehicle Fleet management.