Is there an inexpensive way to test if a high frequency sound gadget is actually working?
I bought a push button doohickey from the TV Shop in the hopes of stopping our dog from barking.
Is there a way of checking if high frequency devices are actually producing sound? The couple of times we've needed to use it there has been no reaction whatsoever from the dog, so I'm wanting to find out if it's working, or if I have bought a lemon.
https://apps.apple.com/us/app/mosquitone-detector/id12895678…
There must be a free version around.
Try this one: https://apps.apple.com/us/app/decibel-x-db-sound-level-meter…
AndroSpectro if you're on the other side of the fence.