Ultrasonic Pest Repellent | Do’s and Don’ts | DnR Technologies

Ultrasonic pest repellent

Ultrasonic pest repellents are electronic devices. They emit (high frequency ultrasonic) sounds designed to repel pests such as rodents and insects. It’s been under observation and discussion about the effectiveness of these devices.


The strategy of deterring pests through use of audible sounds is an old strategy. Ancient Chinese used mechanically operated sensory-repellent devices to deter rodent infestations in agricultural crops and buildings. Ultrasonic, which is defined by sound frequencies past the limit of human hearing, has been used as pest control only over the past few decades. The use of electronic sound to control pests gained momentum in the 1950s and ’60s. Experimentation with this technology started as early as 1948. In the 1960’s the first patent for an ultrasonic pest device was issued. After that many more patents have been issued.

How They Work?

Ultrasonic pest repellent devices are pluggable into a home’s electrical receptacle outlet. It operates by emitting short wavelength, high-frequency sound waves that are too high for humans to hear and are disruptive to pests. Ultrasonic devices emit a sound at about 65,000 Hz (Human hearing range is 20 Hz to 20,000 Hz). This high frequency is audible to animals but at the same time are too high for them to deter pests away. The sound causes a physiological response known as audiogenic seizure response. Which is characterize by non-directional running, convulsions, and likely to leave the place.
Ultrasonic devices are gaining popularity in people. Because of their ease of use and the fact that they are silent to human ears. And also they don’t emit any pungent smell as some repellent sprays do. Allegedly cut the need for traps and poison, which is inhumane forms of pest control.
These Devices proves to get rid of even household pests. Such as cockroaches and other small insects. 
Ultrasonic pest repellent devices are safe for your pets or small children around. Also if you are concern about your own chemical exposure. Some devices don’t disturb your home pets while some may deter them as well. It’s always better to completely investigate the device before investing in one.

Are Ultrasonic Pest Repellent Devices cost-effective?

ultrasonic pest repellent | Are Ultrasonic Pest Repellent Devices cost-effective?As Ultrasonic Pest Repellent Devices lasts for about 3-5 years, it is a long time investment. The devices have an LED light on them, which shows whether they are working or not. In contrast to sprays, traps, glue traps and electric traps (which need to be clean and replaced ) Ultrasonic Pest Repellent devices are cost- effective and also germ free.

Can Ultrasonic Pest repellent Devices alone handle the problem?

ultrasonic pest repellent | Can Ultrasonic Pest repellent Devices alone handle the problem? 
It is a common mistake which is being in view that homeowners plug in these devices in a room and think that this will solve their problem once and for all. Unfortunately, using ultrasound units alone in a closed room is not enough to tackle pest problems. Sometimes it needs to correct the position or add in more units in a place to solve the problem. Alongside Pest Repellent Device, it’s best to incorporate sanitation and exclusion techniques to get rid of pests.

How many units of these devices should I use?

Ultrasonic Pest repellent | How many units of these devices should I use? 
Ultrasound does not travel through walls so it is important to place 1 in each room if its closed space. And if there is an open space, an Ultrasonic Pest Repellent device that has largest coverage area should be the one.

Where should I place my Ultrasonic Pest Repellent Device?

Where should I place my Ultrasonic Pest Repellent Device?The electromagnetic waves emitted from these devices usually can reflect much surfaces. Try to place the devices at an angle pointing straight towards the pest problem area. And not to place any obstacle in its way. This way it would repel the pests with its full capacity.

Does ultrasound affect insects?

Ultrasonic Pest Repellent | Does ultrasound affect insects?Different devices have different settings and they emit ultrasonic waves of different frequencies. There are insect species that can produce or perceive sound in ultrasonic frequencies. And are affected by high-frequency sound. So it’s not safe to say that these repellent devices also repel insects. Yes some can or some cannot. 
But always do complete research before purchasing these devices. It is improper for any company to make specific insect claims. Unless backed by validated scientific studies.
There are many kinds of Ultrasonic Pest repellent devices out there. We have done in-depth research. Have reviewed them to provide our customers with the best Pest Repellent.

What sets our Ultrasonic Pest Repellent apart?

What sets our Ultrasonic Pest Repellent apart?Our Ultrasonic Pest Repellent device:
  • can cover 5000 square feet in open areas.
  • two high impact speakers Designed dedicated to repelling pests.
  • Adjustable Frequency Range, Pitch, and Output to cater your individual pests problems.
  • Electromagnetic High Impact Repelling for inner walls upto 50 ft.
  • 100% Safe as it will not affect humans, cats, dogs, birds, computers, radios, and any electric device.
  • Problem solved by using ET Pest Control(Ultrasonic pest repellent) only in six weeks.
  • Twin Scanning Technology.
  • Ultrasonic Variable Sounds so pests cannot adjust to the annoying sounds Emitting.
  • Night Light like if you have a night light plugged into your wall outlet.


Ultrasonic Pest Repellent does provide you an efficient way to deal with your common pest problems.
They are easy to install and provide good results if you understand how to user them.
Take advantage of latest technology and make your life easier.

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