http://www.stormcam.org/amplified-gps/
System Planning Corporation Awarded Multiple Patents for its GlobalTrak(R) Container Security System
System Planning Corporation today announced the award of its fourth container security patent for its pioneering container tracking and monitoring technology, GlobalTrak®. GlobalTrak’s formidable intellectual property portfolio describes and protects the most advanced container monitoring solution in the market.
WorldNav Truck GPS – adding external speaker