[Electronics-Talk] App Programmable Coffee Makers

David Andrews dandrews at visi.com
Thu Jan 11 21:16:44 UTC 2018


I had one a long time ago, 30 years, and it seemed to work for me 
some.  However, when I got rid of the roaches, I loaned it to friends 
in New York City, and they said they saw roaches marching across the 
top of the thing.

So, I would be skeptical of such devices overall.

Dave

At 05:44 AM 1/11/2018, you wrote:

>Has anyone had success with one of those ultrasonic bug repellers 
>that is supposed to keep roaches and rodents away by emitting high 
>frequency ultrasonic sounds that they supposedly can't tolerate?
>
>Gerald





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