... Engine cut off 5.Fuel monitor GPS camera tracker NR024 :GPS Camera Tracker integrates GPS and GSM functions, which could send ... Monitoring (dump trucks pouring, mixers rotating, etc.)11. GPS & A-GPS (LBS—location based service)12. LED Advertising Screen, RS232 ... working time is about 3.5 hours)AccessoriesDevice, Connecting cable ,GPS antenna ,GSM antenna, Engine controller, SOS button, Microphone, ...