Coban GPS Manufacturer Car GPS Tracker with Relay to Stop Car (GPS103-A) Tracker GPS Car Shock Alarm Free Web for Tracking. Remote Engine Cut-off: Cut fuel and electricity off via SMS or Internet upon receiving high risk status alerts. Multi-Alarm Functions: Includes low battery, SOS, geo-fence, over-speed, door, ACC, and shock alarms. Dual Antenna Design: Equipped with external GSM and GPS antennas for superior signal reception. Real-time Tracking: Supports SMS and web tracking with Google Maps integration and continuous auto-tracking. Long-term Reliability: Classic 2G model with 15 years of proven sales history and stable performance. Wide Network Support: Compatible with GSM/GPRS networks across 850/900/1800/1900MHz frequency bands. Versatile Applications: Ideal for logistics, anti-theft, bank transport, and official vehicle management. Flexible Configuration: Parameters configurable via USB, SMS, or local terminal with TCP/UDP switch support.