... 4 Ad inputs, 4 Digitial inputs, 4 Digital Outputs, gps tracking system. CWT5016 gps tracking system has been designed as a cost effective, low power, self ... GSM/GPRS module to provide an all in one instrument for GPS tracking, data logging, remote data acquisition, alarm and control.It ... vehicle/tank positionAlert on low water/oil tank level gps tracking system (with temperature sensor, I/O controll)