Main functions:

Model GPS/GSM568 is most advanced Auto Alarm and tracking system, that combined most functions in one body. It's a GSM Auto Anti-theft and Vehicle Security System and powerful GPS tracking devices.

You can receive alert notifications, remotely disable vehicle ignition system and ask for SOS help from anywhere. It also allows you to located and control in real-time anywhere in the word at anytime.

Features:

Alarm to phone; report the detail situation of the car
GPS location and tracking
Locating and tracking by telephone, mobile SMS for lat. and lon. 
Remote start engine
Control cars by phone: Arm/disarm, enable/disable the engine, etc.
Phone number reporting
Vehicle owner identifying, refuse strange phone number
Listening in and hand free phone call
Simple friendly voice menu
Four telephone numbers: Two for warning and control; two for emergency
Trigger Sensor including the normal style car alarm.
Remote controller usage as normal: arm/disarm, car searching, silently arm, 
Trunk release
Anti-hijacking:
Sensitivity of shock sensor adjustable
System power off alarming
Alarm memory recall 
GSM frequency: 850MHZ/1900MHZ,900MHZ/1800MHZ (optional) 
Door detect
Automatic central locking system
Emergency help
Compatible with any cars

Index Parameter
Size:145mm*104mm*36mm
Working voltage: 12V 
Static current: 40mA~60mA
Cover scope: same as GSM

Main unit: Storage temperature: -30~+85
Working temperature: -20~+75
Working humidity: 25%~95%
Accessories: Storage Temperature: -40~+100
Working temperature: -20~+75
Working humidity: 25%~95%