Picture: Getty – Tracker units use satellite technologies to pinpoint The placement of stolen motor vehicles A GPS module communicates constantly with satellites to find out its specific place, when GSM technologies achieves this by transmitting its positional facts via cell phone mobile towers. This information can then be triangulated https://medium.com/@trackerfit11/caravan-trackers-and-why-they-matter-for-theft-protection-dd44f62fcad7