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Best Ultrasonic Pest Repellers

Updated August 2023
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Best of the Best
Voya Plug In Ultrasonic Pest Repeller
Plug In Ultrasonic Pest Repeller
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Good for Roaches
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A modern-looking pest repeller that's great at getting rid of usual suspects, such as flies, mosquitoes, and roaches.


Has easy-to-use controls and 3 individual power settings. There's just 1 plug-in unit that is easy for new users to set up. Buyers noted how well they performed in getting rid of roaches, specifically. A good basic set for common bug infestations.


Doesn't work as far and comprehensively as others.

Best Bang for the Buck
MovePest Electronic Pest Repellent
Electronic Pest Repellent
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Great for Spiders
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Another chemical-free pest repellent that safely and ethically rids your house and property of unwanted guests.


It starts working in a week or 2 — far less time than many others do. Protects up to 1600 square feet around the plug. It's harmless to your family and your pets. Set them throughout the house for better results. It's an easy-to-use option.


Don't expect eradication —just dramatic decreases.

ZeroPest Ultrasonic Indoor Pest Repeller
Ultrasonic Indoor Pest Repeller
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Most Dynamic
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These adjustable ultrasonic repellants have multiple options, depending on the range and critters,


There's a 25-65KHz setting for small pests and 10KHz-15KHz for heavy critters. Humans and housepets won't hear the noise. Simple plug-and-play design with a button for the settings. Its minimalist, rectangular design won't be an eyesore when it's plugged into the wall.


Doesn't automatically turn back in if power flickers.

RevolMax Ultrasonic Pest Repeller, 2-pack
Ultrasonic Pest Repeller, 2-pack
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Customer Favorite
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This 2-pack of ultrasonic pest repellers covers as big an area as larger packs and scares off a wide range of rodents and pests.


It's an environmentally-conscious alternative without artificial scents and chemicals. Works with chipmunks, bats, silkworms, and most creepy crawlers. Buyers praised this for acting fast and fulfilling their wide-ranging needs. It can be used with other Revolmax repellers, too.


Some customers claim that theirs didn't last long.

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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. About BestReviews  
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We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

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Buying guide for Best ultrasonic pest repellers

If you’re looking for a simple, non-chemical way to deter mice and bugs from squatting in your home, an ultrasonic pest repeller is an appealing alternative to pest-control services or dangerous chemical traps.

These devices repel pests that are capable of hearing ultrasonic frequencies, but fortunately, human ears can’t hear the sounds. Make your dwelling less attractive to creepy crawlies and ward off disease-spreading rodents and insects from your kitchen, attic, and walls with noise-free ultrasonic repellers.

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Ultrasonic devices are not particularly useful for ants and spiders.

How do ultrasonic pest repellers work?

These devices deter pests with ultra-high-frequency sound, frequencies higher than 20,000 hertz. Humans can’t hear the sound emitted by these devices, but some animals and insects are fully capable of picking up ultrasonic sound waves. The high-pitched sound ranges from irritating to deadly, depending on the critter and the strength of the device in question. Ultrasonic devices are powered by electricity and available in plug-in or battery-operated models.

It’s important to note that this type of device is not effective against all pests. Certain insects, like ants, are more resilient than others when it comes to ultrasonic frequencies. Some studies have also shown that ultrasonic repellers may even attract critters (such as mosquitos) into your dwelling. Correct positioning and use of these units is the best way to maximize effectiveness, but don’t think of it as an instant solution to pest problems. It takes time for repellers of this type to produce a measurable effect.

Ultrasonic pest repellers vs. other pest-control methods

Why choose an ultrasonic unit over poison or traps? Here are the main pros and cons of this type of product.


  • Affordable: These devices are inexpensive compared to professional pest-control services.

  • Long lasting: There’s no need to replace the repellers. Once you choose a set, you’ll be able to use your ultrasonic devices as often as you want.

  • Safer than chemicals: Worried about exposing your children or furry pals to toxic substances like rat poison? Ultrasonic devices are nontoxic and pose no threat to human health.

  • Can be used anywhere: As long as you have an outlet, you can use a repeller wherever you need it. You can’t do that with mousetraps or rat poison.

  • Mess-free: Traps and poison kill pests inside your home and could leave you with lingering smells. Ultrasonic devices are designed to keep the pests out of the home.

  • Simple to use: There’s no setup required. Just plug in a unit and forget about it.


  • Not always effective: There are conditions that can alter the efficacy and interfere with the performance of ultrasonic devices.

  • Doesn’t work on all pests: Not all insects and animals are deterred by this type of product.

  • Limited range: Furniture and walls block sound waves, so you need multiple devices for full coverage of your home.
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Expert Tip
Use traps in conjunction with ultrasonic devices for maximum effectiveness.

Types of ultrasonic pest repellers

You can select an ultrasonic pest repeller according to the pests it deters, the kind of environment it’s designed for, or the power source.


Some repellers are designed to deter specific types of pests, such as insects or rodents. Others are designed to target all the nasty critters that might invade your property. Larger repellers are made to control deer and cat populations.


You can choose a pest repeller to use outdoors or indoors. Weatherproof and waterproof outdoor units are used to repel critters like squirrels and chipmunks. Avoid using a unit outdoors if your pest problem is mainly indoors. You might drive unwanted critters into your home!


The most common are plug-in units. These are small, unobtrusive, and easy to plug into any electrical outlet around your house. Corded options are bigger and usually provide more coverage, but you’ll need an accessible outlet nearby. If you don’t have a conveniently located electrical outlet, a battery-operated pest repeller makes it easy to place a unit anywhere in your home.

Consider these factors

Your expectations

It’s important to be realistic. This type of device won’t wholly eliminate unwanted pests from your home, and it can’t repel every kind of critter. It’s also not a long-term solution. Some pests could become accustomed to the high-frequency sound over time. If you have a severe pest problem, an ultrasonic device isn’t a practical solution. High-frequency-emitting devices are best for controlling light pest issues and preventing bugs and rodents from taking up residence in your home in the first place.

Strength and coverage

For the most part, a larger repeller is stronger and provides more coverage. Correctly placing the repeller will maximize its performance. An incorrectly placed unit, regardless of size, won’t work as well. The sound emitted by these devices doesn’t travel through walls. If mice are devouring the contents of your pantry, the repeller won’t be useful if you stick it in the basement. You’ll probably need multiple repellers for maximum coverage. Ultrasonic pest repellers are often sold in packs of two, four, or six because they’re more effective if spread throughout the home.

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Did you know?
Carpeting in rooms could reduce the performance of your ultrasonic pest repeller, as can thick window treatments.

Ultrasonic pest repeller features to consider


Some units double as nightlights. Place these in your hallway or kitchen so you won’t need to flip on the light when grabbing a snack in the middle of the night.


The ultrasonic sound is emitted through speakers. Units can have up to three speakers. For greater coverage, choose a model with more speakers.

Sound variance

To prevent pests from growing accustomed to the high-frequency noise, choose a unit that varies the sound. It’ll be tough for rodents and bugs to get used to the noise if it keeps changing.

Electromagnetic technology

Some units combine ultrasonic and electromagnetic frequencies for maximum effectiveness. Electromagnetic technology is capable of penetrating walls and other obstacles. The pulses emitted target the nervous system of nasty household pests.

Ultrasonic pest repeller prices

The cost of an ultrasonic unit depends on the brand, coverage provided, and how many different pests it repels. Most repellers come in packs containing two, four, or six units and cost less than $40. The priciest options are designed for outdoor use, and most of these cost less than $60.

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Heavy infestations should not be treated with an ultrasonic pest repeller. If you have a serious bug or rodent problem, it’s time to call your local pest-control expert!


Q. Where should I put my repeller?

A. Choose an open area for best results. Furniture and walls can stop the transmission of high-frequency sound waves. If you’re putting one in your living room, for example, avoid positioning it behind the couch.

Q. Will an ultrasonic device harm beneficial insects?

A. Since they’re typically designed for use indoors, you shouldn’t be too worried about harming the good bugs outside your home. The ultra-high-frequency sound waves can’t travel through walls. Many beneficial insects are sensitive to ultra-high-frequency sounds, so using an outdoor unit could harm the good bugs around your yard. We don’t recommend using an ultrasonic device outdoors for this reason.

Q. Is it safe to use an ultrasonic pest repeller around children and pets?

A. Humans can’t hear ultrasonic sounds, but some pets might be sensitive to certain frequencies. Dogs and cats should be fine around these devices, but smaller mammals like pet hamsters and mice shouldn’t be housed near an ultrasonic pest repeller. Birds might also be susceptible to high-frequency noises. Carefully read manufacturer guidelines to make sure your furry and feathered friends stay safe.

Q. Can I use an ultrasonic device both indoors and outdoors?

A. Most indoor units aren’t designed for outdoor use, and vice versa.

Q. How long will it take to see a reduction of pests in my home?

A. It can take as little as a week or as long as a month. The length of time it takes to reduce the pest population in your home depends on the level of infestation and the strength of the device(s) used.

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