... RS3000 built-in alarm system monitors various vehicle sensors, and provides the customer with a vast variety ... A/D input to support kind of sensors, like the sensors to measure fuel level, weight, temperature and ... are hidden and undetectable when installed.RS3000 are of four models, RS3000B, RS3000B1, RS3000C and RS3000C1, and ... GPS car tracking device, car tracker , vehicle tracker, support fuel sensor