... /power supply, arm and disarm6) Lock car door by telephone or transmitter7) Remote monitor, call, cut off power and ... and modify alarming telephone11) Available two groups of preset alarming telephone numbers12) When alarming, system will call the user, ... Optional)Parameters :1) Average working voltage: DC12V+2V2) Alarm-received telephone numbers: 4; Anti-theft:2; Anti-hijack:23) Sensitivity of ...