... of sensor RS3000B1 is one kind of intelligent GPS two way car security system/car alarm system/vehicle alarm system ... 30V optional) OutputsOil and electricity control, sound/light alarm, Remote controller signalAlarm SystemHijack alarm, Anti-theft alarm, Power discarding ... Battery, GSM/GPS antennas, power/input/output cable, Mic, speaker, buzzer, siren, camera, handset/LCD monitor, fuel level/ ...