... alarm.7,Support for point-to-point, point to group,group-to-group monitoring.8,Set multiple functions of security ... -theft or a vibration sensor, and keyless entry alarm Main functions:1. Positioning and Tracking: Through the ... the Positioning Platform by yourself.2. Triggering Emergency Alarm: When there is a emergency happened on the ... Vehicle GSM/GPRS/GPS car GSM Tracker System Device GPS tracker