A:AnswerYes, depending on how sensitive you set the shock sensor.
Mine was set too sensitive and while I was out shoveling snow around my van, I hit my head on the mirror and it set the alarm off.
A:AnswerIf you're asking about the Compustar 1 Way, it's just that. One way. You would need to get the 2 way system. I have this one way system and - no - it does not signal the remote if there is any alarm activation.