Soundwaves from ultrasonic pest control devices are short range and very weak so they re easily blocked by furniture walls and corners.
Ultrasonic pest controller.
Whereas a middle aged person only hears up to 12 14 000 hz.
Ultrasonic pest repellers once plugged into an electrical outlet operate by emitting short wavelength high frequency sound waves that are too high for humans to hear.
To test out the location of your device place a lamp next to the device turn off all the other lights and note the beams and shadows from the lamp.
Electronic pest control is the name given to any of several types of electrically powered devices designed to repel or eliminate pests usually rodents or insects.
Ultrasonic pest repeller 6 pcs set pest control ultrasonic repellent non toxic electronic repellant bug repellent for ant mosquito mice spider roach rat flea fly.
If you re looking for a clean nontoxic way to deter mice and bugs from squatting in your home an ultrasonic pest repeller is an excellent alternative to expensive pest control services or dangerous chemical traps.
These devices are designed to repel pests capable of hearing ultrasonic frequencies but not to worry.
How does ultrasonic pest control work.
Since these devices are not regulated under the federal insecticide fungicide and rodenticide act in the united states the epa does not require the same kind of efficacy testing that it does for chemical pesticides.
Animals and insects hear sounds in a much higher range.
In theory they emit sound at a frequency that humans cannot hear but pests can.
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The claim behind ultrasonic pest repellers if you ve ever read the packaging for an ultrasonic insect or mouse repellent you know how these devices supposedly work.