... car security system/car alarm system/vehicle alarm system to support complete car realtime tracking, alarm and fleet management. It integrates a GPS receiver, a GSM/GPRS ... ProtocolGPRSTCP/IP over PPPGPS66 parallel satellite-search channels, MTK3329 chipset, module from Holux or Royaltek, L1, C/A code,1575.42MHZI ...