Ultrasonic bug repellers are electronic devices that emit high-frequency noises designed to repel, injure or eliminate household bugs, such as rodents and bugs. Whether they're actually efficient at doing so has been contested by testing laboratories and the United States Federal Trade Commission (FTC).
Left unattended, rodents and pests can transmit salmonella, hantavirus and other diseases, as well as cause considerable building damage. Indications of a rodent problem include droppings, particularly near food and beneath sinks, munched or chewed food packages, and holes in structural products that can offer entry into the house.
How They Work
Making use of audible sound to hinder pests is an old technique; the ancient Chinese utilized a variety of mechanically operated sensory-repellent gadgets to deter rodent infestations in agricultural crops and structures. Ultrasound, which is defined by sound frequencies beyond the ceiling of human hearing, has actually been used as insect control just over the past few decades, however.
The ultrasonic gadgets are plugged into a home's electrical receptacle outlets which then supposedly give off high-frequency noises that are disruptive to pests. The sound allegedly causes a physiological reaction called audiogenic seizure reaction, which is defined by non-directional running, convulsions, and possibly death from cerebral hemorrhage. The theory behind the gadgets is that baffled rodents ultimately get away when the interruption avoids them from gathering food, breeding, developing nests or interacting. Ultrasonic gadgets are popular and appealing to customers because of their ease of use and that they are silent to human ears and presumably eliminate the requirement for traps and toxin, which are believed by some to be inhumane kinds of pest control. Electro-magnetic and subsonic devices are likewise readily available, and all styles vary by signal intensity, rate and frequency.
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