First, I have attached the device at the rear end of the car ports. Unfortunately, holding the gewüschte effect in borders, the cat seemed little impressed by the beeping, which is quite noticeable even for people in the vicinity. Thus, there every morning was announced cats hair removal.
After observing the cat paw marks on the body, I realized that our cat from the entrance reciprocated in the carport and then to reach the top either on hood or trunk lid. When mounting on the rear wall, this meant that the cats distributor triggered already far in advance. Until the cat on the deck arrived, the alarm was apparently silent again or the cat was already accustomed to the "noise".
I have the equipment then relatively side of the car above the roof height installed close something, so that the triggering takes place only when the cat is really embarks on the car roof. And lo and behold - since then I have no more cat hair on my convertible top.
Conclusion: The unit works with the location at which you should experiment.
The first battery pack holds now only four months ago - and this a perfect score.
