Updated On

November 30, 2023

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    It’s claimed that ultrasonic electronic devices like the ultrasonic rodent repeller repel various types of pests like rodents and insects. These devices emit soundwaves designed to irritate and repel these critters. However, before you invest in one, you should understand what these devices can actually achieve, especially when dealing with different kinds of pests or spaces of different sizes.

    In 2001, the Federal Trade Commission (FTC) took a stand and warned manufacturers of ultrasonic pest control devices to back up their claims of effectiveness with scientific research. As a result, you’ll find that the packaging and websites for these devices now reference studies and make more modest claims. However, overall findings are still mixed.

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    Ultrasonic devices shouldn’t be viewed as a stand-alone solution. At best, they can contribute to an integrated pest management system when combined with other techniques. It’s essential to set realistic expectations, as these devices don’t eliminate pests completely.


    How Ultrasonic Pest Control Works

    Ultrasonic pest control devices like ultrasonic rodent repellers create high-frequency soundwaves designed to ward off pests like rodents, raccoons, and fleas. The soundwaves are meant to be intolerable to pests, driving them away from the device’s location. The devices emit ultrasonic soundwaves at frequencies of 25 kilohertz (kHz) or higher, which is beyond the range of human hearing. Some pets like hamsters and even dogs and cats can hear some of the higher-frequency sounds emitted.

    Manufacturers design the devices to broadcast ultrasonic waves throughout an entire room or area, making them suitable for spaces of different sizes. The waves reflect off walls, furniture, and other surfaces, creating an environment that pests want to avoid.

    Research on ultrasonic pest control has been done primarily on rodents, raccoons, cockroaches, mosquitoes, and stored product pests like flour beetles. Results vary by pest type. For example, cockroaches appear to be the most susceptible, followed by rodents. However, overall effectiveness remains limited and inconsistent. These devices may repel or reduce the presence of some pests but don’t work on all types of rodents and insects.


    Are Ultrasonic Repellents a Scam?

    Given the mixed results reported by users and experts, whether or not ultrasonic pest repellent devices are a scam has been a concern among homeowners. Some consumers have reported disappointment after purchasing these devices, claiming they don’t live up to their promises.

    To avoid falling for a potential scam, it’s crucial to do your research, read customer reviews on platforms like Amazon, and understand devices’ money-back guarantees. Reading about the experiences of other customers can provide valuable insights into the effectiveness of these devices. While individual results may vary, a pattern of consistently positive or negative reviews can help you make an informed choice.


    Alternatives to Ultrasonic Pest Repellents

    While ultrasonic pest repellent devices such as the ultrasonic rodent repeller can be a part of your pest control strategy, relying solely on them is not advisable. It’s generally more effective to combine multiple methods for pest control. 

    Here are some alternatives to consider:

    • Mouse traps and baits: Traditional mouse traps and rodent baits are proven methods for dealing with rodent problems.
    • Pesticides and sprays: For specific pest infestations, using pesticides and sprays can be effective. However, use them with caution and follow safety guidelines.
    • DIY pest control: Homeowners can address minor pest problems using DIY solutions, including sealing entry points, fixing leaky pipes, and practicing good sanitation.
    • Professional exterminator: For severe infestations, hiring professional exterminators is often the most reliable solution. They have the expertise and access to more potent treatments.

    So, Are Ultrasonic Pest Repellents Effective?

    Ultrasonic pest repellents can assist with control efforts but should not be the sole solution. Have realistic expectations — these devices reduce but do not completely resolve infestations. 

    Strategically installing them alongside traps provides the best chance for controlling pests. Pest populations, though, may adapt to the sounds over time, limiting long-term results. If you still notice pests after installing ultrasonic repellent devices, it may be time to consult with a professional pest control company.

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    FAQs About Ultrasonic Pest Control

    Do ultrasonic pest control devices work on bed bugs?

    Ultrasonic devices have not shown consistent effectiveness against bed bugs. For bed bug problems, it’s best to consult a professional exterminator.


    Are ultrasonic pest repellents safe around pets?

    The high-frequency sounds emitted by these devices are typically safe for dogs and cats. However, it’s important to observe your pets’ reactions, as some sensitive animals may be bothered by the sound.


    How long does it take for ultrasonic pest control to work?

    Ultrasonic devices start working immediately to repel pests. However, it can take up to two weeks of consistent use to achieve noticeable results.


    Do ultrasonic pest repellent devices work on raccoons?

    Ultrasonic devices have shown some effectiveness in repelling raccoons. However, the results can be inconsistent, and they’re not a guaranteed solution.


    What's the suitable square-foot area for an ultrasonic pest control device?

    The coverage area of these devices can vary. It’s essential to choose a device that matches the size of the area you need to protect from pests.


    Do ultrasonic pest repellent devices come with a money-back guarantee?

    Many ultrasonic pest repellent devices offer a money-back guarantee. Before purchasing one, check the manufacturer’s return policy and guarantee terms.


    Editorial Contributors
    avatar for Jordan Tyler Quinn Farkas

    Jordan Tyler Quinn Farkas

    Expert Writer & Reviewer

    Jordan Tyler Quinn Farkas is a globetrotting content writer hailing from the USA. With a passion for pest control, he brings a unique perspective to his writing from his early years working for one of the largest pest control companies in America. Throughout his early 20s, Jordan gained valuable experience and knowledge in the field, tackling pest infestations head-on and ensuring the well-being of countless homes.

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    photo of Lee Ann Merrill

    Lee Ann Merrill

    Chicago-based Lee Ann Merrill has decades of experience writing and editing across a wide range of technical and scientific subjects. Her love of DIY, gardening, and making led her to the realm of creating and honing quality content for homeowners. When she's not working on her craft, you can find her exploring her city by bike and plotting international adventures.

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