Top Selling GPS Trailer Tracking Solution


The ST-312 is a small, self contained, Hard wired with a battery backup, Real-Time GPS Trailer Tracking Device.

High impact plastic design, waterproof to up to 5 feet, this device can handle the everyday punishment of the trailer tracking industry.

Track your heavy equipment or fleet trailers with this compact device.

Choose 10 or 30 Minute updates. Full reporting capability.

Lower your insurance rates and increase recovery chances of stolen items.

Security in the Palm of Your Hand



  • 10 or 30 minute updates
  • Unauthorized Movement Alerts
  • Internal Antennas (GPS/cellular)
  • Low Startup Cost
  • Battery Backup
  • Low $12.95 Monthly Plans
  • Customizable Geo-Fence Feature


  • Location and routes, by detailed color map, satellite image, and address;
  • Online Reports of Mileage, Stops, and Moves;
  • Vehicle closest to your customer;
  • Details of continuous activity during the past 6 months;
  • Alerts: Vehicle Speeding (you set the limits)
  • Geo Fencing Capabilities


  • Up to 180 Days of historical data saved online.
  • Snail Trial of for each day
  • Email Reports


Download Info Sheet Here