GPS satellite & LBS base station dual model positioning ◇ Vibration alarm (sensitivity is adjustable from 1 to 5 grade) ◇ GEO-fence ◇ Low current consumption sleep mode ◇ACC detection(Digit input1: 9-50V) ◇AC detection(Digit input2: 9-50V) ◇ADC detection(Analog input: 0-100V): support fuel oil sensor, temperature sensor ◇ +5V output for sensor power supply ◇ Remote control cut-off/on engine (petrol / electricity) ◇Power cut off alarm ◇ SOS Alarm ◇Voice monitoring ◇ 128M data storage while no gsm