Used ultrasonic devices in my barn - complete waste of money. The rats didn’t care at all. Old-fashioned snap traps worked 100x better. Save your cash!
@DataBridge I wish they worked as advertised! The concept is cool, but until they can prove consistent results in controlled studies, I’ll stick with traditional methods.
Before spending $50+ on these, try this free solution: Keep your kitchen spotless and store food in airtight containers. Worked better for me than any gadget ever did!