The Dual Stage Shock Sensor is only for sensing vibrations in the vehicle. It has a micro sensor that "reads" the postion of a balanced weight hanging in front of it. With a given amount of vibration, depending on the sensitivity of the sensor will output a warning pulse. If the vibration continues it will then output a constant signal to trigger the alarm.
Not the Dual Stage Shock Sensor. There is another add on that requires alot of work that will shock when the car is touched. Haven't done any work with it though.