A plug-in GPS tracker is an ideal way to keep tabs on a driver’s location and driving performance. They’re increasingly being used by concerned parents to monitor inexperienced teen drivers or by family members who want to keep an eye on vulnerable seniors. Good trackers should show a vehicle’s location on a digital map, review trip history to reveal a car’s route and receive notifications when a car leaves or arrives at a predetermined area (a geofence). They also can send various alerts if the tracker detects speeding, hard braking or rapid acceleration. Some can even detect if the car has been in a collision and automatically notify pre-set contacts.
All of these trackers can be easily plugged into a car’s OBD-II diagnostic port (see FAQ), and transmit data via a cellular data network, which requires a monthly or yearly subscription fee.