alan_m wrote:
On 09/04/2018 14:35, Chris J Dixon wrote:
alan_m wrote:

My experience with any ultrasonic pest device is that they don't
work.

Mine too.

I tried one, and the cats and squirrels were completely
unaffected. However, my partner's rather younger ears were
sufficiently sensitive to find it seriously irritating, so it
didn't stay in use very long.


I had one to deter cats from ****ting in my front garden flower bed.
The first time they encountered it did frighten them off work but
within a few days they just looked at it and carried on ****ting.

Tried one. It did not work.
Went to Halfords, that worked.