... car security alarm 1.2 way car security alarm 2.car security, car alarm 3. car alarm system 4. security alarm, 2 way 2 way Car Security Alarm TK220Key Functions of 2 way Car Security Alarm TK220 ... shake, cut-off power. This car alarm system & tracker will trigger the siren to sound on spot, it will ... status, if the car is vibrated, the siren will sound & system will send out alarm SMS to inform user ...