King Pigeon Hi-Tech.Co.Ltd. the biggest GSM Alarm supplier, including GSM Home alarm, GSM Car alarm, GSM GPS Vihecle car alarm systems. S3542 GSM GPS Car Alarm Tracking System adopts the GPS and GSM technology to protect the car or vehicle.This system integrated the Alarm functions and locating function, not only with GPS，but also includes all the functions of the GSM Car alarm system. Furthermore, this system applies to Private User as well as Group User. For Private User, the user can track his/her car via cell phone or internet with the attached personal software, for Group Users, the user can monitor their cars or vehicles via internet. 1. With voice instructions, also with SMS and voice alert while alarming; 2. With two mode, Private User mode and Group User mode; 3. Can monitoring the car via monitoring center if you select as Group User. 4. Support SMS control functions. 5. Integrated the GSM Car alarm functions and GPS track functions in a control panel. 6. Locating your car through cel King Pigeon Hi-Tech.Co.,Ltd., the biggest GSM Alarm CE Approved OEM supplier, including GSM Home alarm, GSM Car alarm, GSM GPS Vihecle car alarm systems,support SMS Commands. At present,most of our managers are technical and marketing experts including 60 software and hardware engineers,most of them are major in wireless telecommunication or many years experienced in RF designing .Meanwhile,we cooperate with many high technology partners and institutes, as well as many professional Universities all the time.