Top critical review
the best way is to find out where they are coming ...
on 11 October 2014
All I can say about these are that they are all C**P. If you have mice or rats, the best way is to find out where they are coming from and block it up with mortar, concrete or fine grade steel wire mesh. Don't rely on these devices, the mice and rats ignore them or worse they will chew through your electric cable to stop the noise (if any noise is coming out of them!). Don't rely on poisons as they will stink your place out and get the flies buzzing around your home. These devices are a 100% waste of your hard earned dosh.
I found out where the rodents were coming by the hard way, by pulling up floorboards and finding a hole in the wall. They were coming from my next door neighbour! I didn't tell them because I think they know already and they didn't tell me. So sod them. I blocked the hole up with concrete and hey no more rodents.