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How can a sonar/ultrasound pest control unit be DIY? Answered

I've seen ads for pest control units that transmit some sort of signal that drives bugs &rodents; away... friend had one & she didn't even get flies... but not sure which ones really work, and so expensive..... Would love to find a DIY Instructable on this! It would save money, the environment...etc...

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benthekahnBest Answer (author)2009-01-31

Here is a solar powered one for $8. I got a few from this site.

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Jsoa (author)2018-02-21

I think it is not hard to make it DIY! just teach some of them from here https://stoppestinfo.com/79-electronic-indoors-repellers-review.html. Good if you have one of them, just disassemble it and look inside!

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toelle (author)2009-01-31

Doesn't they use a speaker emitting a very deep tone? Just figure out how many hz they use and make one yourself.

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SabraM (author)toelle2009-07-26

Save your money. They do not work. I bought some out of desperation, plugged it in, and almost immediately had roaches playing on it. They loved the blasted thing.

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DHeights (author)2009-04-23

There are several university studies that show that ultrasonic devices don't work. Here are just a few of them: Colorado State University Cooperative Extension: Ultrasonic devices have not been proven to control mice. University of Nebraska - Lincoln: Considering Ultrasonic Pest Control Devices? Save Your Money Ohio State University Extension: Ultrasonic pest repellers are not effective in controlling flies and other insects.

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