... (LBS—location based service)12. LED Advertising Screen, RS232 Printer, Temperature sensor, RFID (optional) Positioning and tracking: through ... -40~85°CHumidity10% to 90%CPUTI:MSP430F5419(100MHz)GSM ModuleGSM Module:SIM900Band:850/900/1800/1900MHz,GPS ModuleGPS ... about 3.5 hours)AccessoriesDevice, Connecting cable ,GPS antenna ,GSM antenna, Engine controller, SOS button, Microphone, Camera, LED ...