Car Alarms: car alarms, alarmtek, proximity sensor

Question
ARE THERE ANY CAR ALARM BRANDS/MODELS THAT ALREADY COME WITH A PROXIMITY SENSOR OR IS THAT SOMETHING I NEED TO PURCHASE AS ADD ON?

Answer
Most all after market system would need you to wire one
in place of the shock sensor.

The Omega/K9 Sombra system is 1 after market system
that allows you do have the fob in your pocket and
allow you to lock and unlock / arm and disarm hands free
when you walk up to and leave the vehicle, but you
probably meant an microwave motion sensor that detects
mass disturbance within a given field. So my first
answer stands.

I sell them here for 43.00 + shipping if interested.

ALARMTEK