Can also be anchored in the ground with stilts. Various sensitivities and frequency responses can be selected. Thus one is overwhelmed as a layman. Luckily, there are a setting that should scare all the animals. In how far the batteries last for example if rain permanently triggers the motion, I can not answer.
To date, the raccoon has not yet resurfaced.
Supplement 2.5.15
The batteries make irgengendwie limp and the pads via USB also comes with loose contact. Too bad. Depreciation on two star!