DigiSAFE V-Tracker is a compact and versatile GPS/GPRS transponder to identify, monitor and track marine vessels or vehicles on land. All the electronics and antennae of the transponder are integrated into an single IP67-qualified physical unit that can be easily deployed. Based on the latest GPS technology and GSM/GPRS mobile system, the transponder provides real-time information to the monitoring system so that faster and accurate response can be made in time of crisis. The transponder also ensures that tracking information is not lost at all time by storing data in memory when moved out of GSM/GPRS coverage area.