Published on 03/12/2008
I have seen all kinds of devices like that. Living in an urban area, I have little use for it, but it has a solar panel, so it sparked my interest. It turns solar energy into electricity that is used to generate a sonic tone that is supposed to deter animals like moles from squatting in your garden.
I do not know if it works, but if it does, it would be better than using chemicals.