Also emits electromagnetic waves. Repels rodents, roaches, flies, and bugs. Covers a large surface area. Chemical-free and safe for humans and pets. Built-in on/off button. Energy efficient.
Although effective, the device is not very durable, and so may not last that long.
Kit includes 6 pest repellers. LED light shines when repellers are active. Drives ants, roaches, spiders, mice, and rats away. Nightlight and extra outlet features.
Will not ship to certain states, such as Hawaii and New Mexico.
Works in green, blue, and red modes that are effective for minor, medium, and severe infestations. Green and blue modes are completely silent. Drives away all types. Can be used in very large rooms.
A bit pricey for a single repeller.
Uses 5 methods to help get rid of rodents and/or keep them away, with high-intensity signals to annoy and confuse. Easy to use — just place it in an area where there is an issue.
Doesn't work in all situations, especially if you have a large infestation.
Two upgraded units that cover a total of 2,400 square feet. Units have night lights that emit pleasant blue light. Some owners are impressed with how well they work for deterring mice. Money-back guarantee.
Only two repellers for the price. May not deter all pests, especially roaches.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.