Even the successful research on ultrasonic pest control devices shows a percentage of decrease not a total elimination of rodent and insect pests.
Ultrasonic pest controller.
Whereas a middle aged person only hears up to 12 14 000 hz.
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.
Soundwaves from ultrasonic pest control devices are short range and very weak so they re easily blocked by furniture walls and corners.
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And these frequencies are supposed to be tuned to just the right level to drive pests crazy.
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.
These devices are designed to repel pests capable of hearing ultrasonic frequencies but not to worry.
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.
In theory they emit sound at a frequency that humans cannot hear but pests can.
Animals and insects hear sounds in a much higher range.
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.
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.
The average young person hears sounds ranging from 20 to 20 000 hz.