... GPS antenna Alarm can be sent by SMS & Email Car Vehicle Truck GPS Tracker & GPS Tracking System AVL ... Built in U-Blox GSM (4 Band) & GPS module- External GSM & GPS antenna make the signal better- U ... over 1 year.- Visit website can track the car or display the history tracking- Platform use free ... work with other AVL device and platform- Suit for tracking car, bus, truck, taxi, rent cars, school bus, ...