Excited Cats is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.

Will an Ultrasonic Pest Repeller Bother My Cat? Signs to Look For

Vet approved

	Dr. Luqman Javed Photo

Reviewed & Fact-Checked By

Dr. Luqman Javed

DVM (Veterinarian)

The information is current and up-to-date in accordance with the latest veterinarian research.

Learn more »

Maintaining a clean house definitely brings a pleasant home environment for yourself, your family, and your pets. Keeping the house clean with a cat is already a chore to begin with, but it becomes even more of a challenge when dealing with pests.

Ultrasonic pest repellers have become a popular method for homeowners to keep away these nasty visitors. As cat owners dealing with pests, you may wonder if ultrasonic pest repellers will bother or even harm your cat. Generally, ultrasonic pest repellers are considered safe for cats, but can still potentially cause discomfort for some.

If you’re looking to get a pest repeller for your home, it is important to understand how this may affect your cat. Read on to find out more!

3 cat divider

How Do Ultrasonic Pest Repellers Work?

Ultrasonic Pest Repellers are electronic devices that use high-pitched sounds rather than chemicals or mechanical traps to repel pests, such as rodents and insects. Sounds are considered ultrasonic when they reach a frequency of more than 20 kHz, which is inaudible to the human ear. While ultrasonic sounds are way beyond the frequency range of humans, there are several animals that can still hear these sounds.

The high-frequency sounds emitted by these devices can vary in intensity and frequency range. Although the device relies on high-frequency sounds, it is the volume or intensity of these high-frequency sounds that repel pests.

While many people are satisfied with the use of ultrasonic pest repellers, more research is required, as there is still very little evidence confirming it is indeed effective as a proper method of pest repellant.

Pest Repeller
Image Credit: GS23, Shutterstock

Why Do People Choose This Method?

Since ultrasonic pest repellers use high-frequency sounds rather than toxic substances or mechanical traps to repel or manage pests, they are considered safer for houses with children and pets. This non-toxic approach is also considered more environmentally friendly than methods that involve toxic or poisonous sprays.

The device itself is also small in size and can be either battery or outlet-powered. This makes it convenient and easy to use.

Ultrasonic pest repellers are also considered more humane than the use of traps or poisons since they simply keep the pests away, rather than killing them.

How Do They Affect Cats?

As we all know, cats have sensitive hearing. They have a frequency range of around 48 Hz to 85 kHz, which is well within the high frequencies emitted by the ultrasonic pest repeller devices. Cats are generally unbothered by the high-frequency sounds from these devices, which are generally considered safe.

They are, however, sensitive to changes in volume or intensity. Loud noises can cause irritation, discomfort, and even anxiety to a cat. So, depending on the volume setting of these high-frequency sounds, your cat may either be unbothered or irritated.

Another thing to consider is that cats are creatures of habit that dislike change. The smallest of changes in their homes can easily stress a cat out, such as adding a strange device that emits high-frequency sounds.

If you’re considering getting an ultrasonic pest repeller for your home, be sure to observe how your cat will react to it. While they are generally considered safe, the loudness of the ultrasonic sounds may bother them, so try to set the device to a low intensity or volume.

cat ear close up
Image Credit: Pixabay

Cats’ Sensitive Sense of Hearing

Cats’ sense of hearing is different from that of dogs. While dogs can hear some ultrasound frequencies, a cat’s sense of hearing is far more sensitive. In addition, they have many muscles on their ears, which let them easily turn them in different directions in order to better focus on an incoming sound. Cats are obligate carnivores and natural hunters who use their ultrasonic hearing to pick up high-frequency signals from small animals, such as rodents. Because of this, they are used to hearing and picking up high-frequency signals, which would keep them undeterred from the emissions of the pest repellers at low intensities.

Signs That Your Cat Is Bothered by the Ultrasonic Pest Repeller

Like all pets, not all cats are the same. Some cats may respond differently to the ultrasonic pest repeller due to the loudness of the sounds, the mere presence of the sounds, or even the change of environment brought about by adding the device in the first place.

While difficult to specifically pinpoint the reason why they’re reacting negatively to the pest repeller, it is important to note certain changes of behavior that may tell you cats are bothered by the device. Some of these include:

Are They Bad for Other Pets?

If you have other pets in the house aside from cats, you will also want to know how ultrasonic pest repellers will affect your other pets. Like cats, dogs can be generally unbothered by the high-frequency sounds and may choose to ignore them. They can, however, be irritated or uncomfortable if the volume of these sounds is too loud, just like cats.

Other smaller pets, such as lizards, rodents, and rabbits are greatly affected by ultrasonic pest repellers. They are considered harmful to them and must be avoided.

Ultrasonic pest repellers are marketed as safe and non-toxic for pets. While this is true to some degree, the actual effectiveness and safety is still largely debated due to the lack of research present on the topic. If you are considering getting one of these devices, it is best to observe how your pet responds and reacts to it, regardless of the animal.

Pest Repeller
Image Credit: GS23, Shutterstock

Other Alternatives to Ultrasonic Repellers

Because of the unpredictability of how your pet may react to ultrasonic pest repellers along with their vague effectiveness, there are other pet-friendly and more effective pest-repelling alternatives available. Some of these include:

  • Glue boards
  • Mechanical traps
  • Sealing of cracks, crevices, and holes in the walls
  • Professional pest control services

When adding traps, it is important to remember that pets and children can be curious. Just be sure they are out of reach of your pet or children to avoid any nasty accidents.

3 cat divider


Ultrasonic pest repellers are a safe, humane, and environment-friendly method of managing pests at home. They are generally safe for your cat, but it is still best to monitor how they will react to these devices because of their sensitivity to loud sounds and changes at home.

Though ultrasonic pest repellers may not yet be established as effective through research, if you consider getting one to manage your pests, just be sure to first consider how your cat reacts to it!

thematic break

Featured Image Credit: Yevhen Prozhyrko, Shutterstock