For processing: solid manufactured, stable aluminum spike, clean wiring and there is a plastic pin, which allows you to disable the fright (after removal of the upper part). Unfortunately, no on / off switch on the housing, but the switch does not work, at least broken and the top is sealed.
To function: the shock 24 works, even if it is situated in the shade. If, as suggested, is quite stuck in the ground, he is barely audible. On the night when all is quiet, you can hear him already, but also must, otherwise he does not help yes.
To effect: I have distributed over a length of about 10 m 3 Schreck. Before that I had at least 2 new heap per day. After 24 operation could be seen no new bunch more. After a week of continuous operation is still no new pile. I now have the fright disabled (night's sleep and avoid the habituation effect), let's see how long rest.
For me, the shock has wonderfully helped apparently there is different sensitive moles.