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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Can the rodent repeller work?

Decades ago I worked for a researcher who actually studied perception in rodents. I supported the research where we actually measured the hearing of rodents. I can tell you for certain that none of the animals, which included multiple rodents, lizards, cows, south american Cavies, and even an elephant, that we tested could hear frequencies much above 20 KHz.
 

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