I have bought the product on 8.6.2010. Since then, fortunately, no longer Marder has strayed into my engine room. Before that I had already 3 times a marten damage. The only criticism is that the allegedly for humans inaudible beeping can be perceived very well. In most cases, this is not disturbing and can be found in the car park his car sometimes a little faster, if one follows the beeping. However, I do not think this is the point of it. Unfortunately, you now do not know if in the last six months not dared marten to my car because I have installed the Marder Schreck or simply no one was there, so the functionality is difficult to assess. Anyway, since then nothing happened, so I'm satisfied. The installation was completed in a few minutes, it is accompanied by a guide.
