... GPS module: HOLUX M-893. Real Time Internet Based Vehicle Tracking 4. Can record track without GSM network5. Working method: Locate ... server20. Can preset 3 phone number by SMS21. Tracking on demand. 22. Tracking per time intervals.23. Storage when there is no ... coverage24. It supports GPRS/SMS communication25. Standard tracking in real time through: unit PIN, location, speed, time, ...