It depends on the amount of ..

After the animals had unterbuddelt our entire lawn, we had to do something. From friends we learned that 4 per 150 sqm annoy the beeper until an amount of about the animals so dasss they show the corresponding effect. In addition, the floor is laid with us right. The way into the lawn and switched - a few days soäter no recent activities more. However, we have warned and asked to come forward if they feel disturbed our neighbors. Finally, the beeper can be switched off.
Ultimately, it should be mentioned that the different providers also send different quality. We have the case of delivery (total of 3 orders) superimposed goods get left powerless. This we had to lengthy load on the solar cells. Beep today (apparently) not as strong as the newer.