Description GOST Apparition w/ next generation Nav-Tracker IDP Tracking Antenna. The Inmarsat Satellite based GPS Tracking component of the system is the NEW GOST Nav-Tracker IDP, a ruggedized marine grade satellite antenna with two-way communication and 99.9% reliability mandated by the IMO. The Nav-Tracker provides global arm/disarm & relay control over satellite and integrates with the GOST Apparition to send security & monitoring alerts over satellite providing true global protection even when out of cellular range. *Sim card only requires low Data (Under 2GB) with SMS enabled. **GAP-TSK5: 5″” Touch Screen included, GAP-TSK7: 7″” Touch Screen can be substituted in Package for same price** | GOST-Apparition-GPS-IDP