sonic vermin deterrents

[quavers]

sonic vermin deterrents do these things work ? please prove me wrong as the wife has bought some and im saying she has wasted her money and to put them back , supposed to work through the house wring , thanks quavers

 

[organicguy]

Were reviewed on Sliced bread or BS on radio 4

Came out definitely BS.

 

[Kidds]

No

 

[collywol]

Saw a rat sitting on one of ours, yes it was switched on. So, no
they don’t.

 

[borderterribles]

I used to work somewhere that had a huge rat problem. They had one of these sonic deterrents. It had a red light on the top to indicate that it was switched on. There were regularly that many rats sitting on the box that it was impossible to tell whether it was switched on,or not!