Shopping for a Pest Repeller but still have a question? Then you’ve come to the right place!
Pest Repeller Frequently Asked Questions
Have a question we haven’t answered? Then let us know and we’ll handle those too.
How to pest repellers work?
In the simplest terms, pest repellers work by annoying your pest such that they want to go somewhere else. This can be accomplished in several different ways.
Bird spikes and scare tape make if physically difficult for birds to navigate and land; Castor oil fouls up a mole’s taste buds; and motion activated sprinklers gently swap away intruding pests.
Meanwhile some pest repellers are more scientific or clinical in nature. Many companies have invested lots of time and money into figuring out how to take advantage of our pests’ biology.
- Sonic devices emit high frequency noises which annoy pests and send them scurrying away. Not only do pests find noise annoying, just as we do, but it also messes with their instincts. Animals and insects use their delicate hearing to sense danger or seek prey. If these survival skills are impeded by the ultrasonic devices then they are likely to seek our more hospitable surroundings.
- Visual deterrents work well with predatory and prey animals. These animals have a keen sense for survival and are happy to move along to safer hunting grounds if they feel threatened. Scarecrow and motion oriented devices generally fall within this category.
- Scents and sprays make up a third category of repellents. Along with refined hearing, many pests have a very developed sense of smell. This allows a range of opportunity for repulsive or just overwhelming scents that impact a pest’s ability to hunt for food. If food becomes difficult to locate, you can count on that pest moving along. For larger animals, like deer, scents mimicking territorial markings will encourage them to move along as well.
If you are consistently having issues with a single type of pest then a single line of attack may be all that you require. However, if you have multiple pests or a particularly tenacious critter then a combination of methods may be required to round out your offensive. Use some strategic thinking to determine why these pests have invaded so that you can attack them while also diminishing the value they’re seeking from your home or lawn.
Is this pest repellent safe?
Yes, most repellers rated for sale in the US are safe for use, though an understanding and adherence to the product user guides are recommended.
This is important not only for safety, but also for effectiveness.
Devices which plug into the wall should be given their own outlet and not left in an extension cord. Many of these devices use your home’s in-wall circuitry to amplify and distribute their pulse. Additionally, such a device is designed for constant use, however, most extension cords are not. Therefore, better to avoid the risk of overloading or overheating an extension cord.
Note, the pulse these devices return through the electrical circuitry are within tolerances and do not pose a threat to your electrical system in and of themselves, provided your electrical system is up to code.
Chemicals or poisons should be granted their own set of unique considerations. Most products would not kill an adult but could be fatal to small children. Be very careful when handling or using such products.
As a rule, consider the nature of the product your using. If you want to “annoy” and run off a pest then ensure the product doesn’t also annoy you. If you want to kill a pest, then consider that the product, if abused, could land you the same fate.
Is the ultrasonic device safe for my family and pets?
Generally speaking, these products are safe. However, you should take into consideration the similarities between the pest you want to repel and the pet you want to protect.
Additionally, if you live in an apartment or share walls with a neighbor, you may want to consider letting them know in advance.
Ultrasonic pest repellers work by emitting a high frequency sound that is inaudible to humans but inhospitable to many pests.
Here are the usual hearing ranges for common pets and pests:
Cat 45-64,000Hz
Dog 67-45,000Hz
Gerbil 100-60,000Hz
Guinea pig 54-50,000Hz
Human 64-23,000Hz
Mouse 1,000-91,000Hz
Rabbit 360-42,000Hz
Rat 200-76,000Hz
What you’ll notice is that, above 64,000Hz, the only animals hearing anything are rats and mice. If you’ve got a pet around the house, then make sure to get a product that sounds off at a high enough frequency. Please note that these are ranges and that variability does exist between these ranges. For example, a smaller dog will be able to access the higher end of the dog range than a larger bred.
Also note that some animals and humans may be sensitive to high frequencies without being able to hear them. So be sure to monitor your family and pets when you install a new ultrasonic device to ensure everyone remains safe.
For more information on hearing ranges please check out this academic study on deafness and hearing ranges.
Is the ultrasonic device safe for my pregnancy, pacemaker, and hearing aid?
Pest control devices are not known to cause any problems for people with pacemakers and hearing aids as the frequencies that the devices operate at are not high enough to interfere with either medical device. Modern pacemakers have been designed with everyday living in mind so there should be no problem. Similarly, hearing aids are designed to mimic the usual range of human hearing so you should not pick up any interference if your hearing aid is functioning correctly.
Expectant mothers are also safe around ultrasonic devices because it is volume or decibel levels that can impact a baby’s wellbeing rather than the frequency.
What is the best approach for placing these devices around my house?
There is no single right answer for this question. The size and layout of individual homes along with the nature of each specific pest allows for a range of opportunity.
Here again, we want to approach this in a strategic manner. Even the right product may not be effective when deployed incorrectly.
Where are the pests entering your home? What are they after? As you start to define these cases you’ll also start to narrow down your list of ‘best options’ for your repeller placement.
Generally, each floor should be treated independently as most deterrents lose their efficacy across floors. Read your product’s labels and indications for more details.
Most products will offer a square footage rating. While this is a good metric be sure to consider the age of the home in addition to the number of floors. Many newer homes boast open floorplans while older homes may separate each space more discreetly. These subtle differences can impact a repeller’s impact.
Remember that time is on your side and that you’re well advised to allow room for some tactical patience. Removing an infestation is rarely an immediate result. Rather, organize and plan your attack. For example, if you live is a multi-story home you’ll want to start at the top and work your way down over time. This will help to guide the pests out of your home by allowing them a clear exit path.
Make it easy for the pests to leave by not blocking their exits. This might be counter intuitive as you may think of blocking their entrance. The key point is that you be thoughtful in your approach.
What does the blinking light mean?
Every device is subject to differ so for the absolute best direction you’ll want to consult with your user manual or the manufacturer’s website. That said, most battery powered ultrasonic devices fall into one of two categories. Single or Multiple LEDs.
Single LED devices direct connect the light to the same circuit as the device. Therefore, the level of brightness corresponds directly with the power remaining within the batteries. To ensure steady and consistent pest repelling emissions be sure to replace the batteries when the lights start to fade.
Devices using multiple LEDs tent to relay on the traffic light system. As you might imagine, Green indicates full power, Yellow is diminishing power, and Red indicates low batteries or another issue with the system.
How do I deal with pests in the walls?
Without resorting to fumigation, sonic deterrents are your best solution to the problem of pests in your wall. These devices make use of your internal circuitry (and in some cases plumbing) to carry their signal deep into the walls of your house. While their signal is unlikely to reach other rooms, by using your wiring, the high frequency sounds will continuously annoy any pests inside the walls.
Alternatively, you may wish to leave out poison, in the hope that a pest will take the poison back to its nest and kill off its friends. This can be especially effective if you are dealing with a new nest of mice since a sonic device is unlikely to cause a mother to leave her babies.
As always, be especially cautious with poisons if you have pets or small children.
Once you’ve dealt with your infestation, be sure to check out your insulation to ensure you haven’t lost any of your energy protecting coverage.
How do I get pests out of my house?
Sonic devices are probably the most cost effective and human-friendly solution to pests inside the home. Scents inside the home are likely to cause you some level of discomfort whereas sonic devices will drive away most common household pests without you even noticing it is there.
If you are dealing with fleas, mites or bedbugs then a thorough application of an effective poison will make sure that the infestation is stopped before it gets out of control. Pets need to be carefully monitored and treated accordingly and dirty children can often bring insect eggs into the house after a day of outdoor play.
Move quickly once evidence of pests begins to appear. You can more easily roust ‘new’ pests before they grow too comfortable. Additionally, pests bred pests and not just a burgeoning family tree. Your pest is likely the preferred treat of another pest and the longer you allow the first group the take hold the more fertile a hunting ground you provide for something else.
How do I keep pests away from my garden?
Gardens can be quite tricky to protect, since a beautiful garden provides a massive temptation to a large number of pests. As such, you will probably need to deploy a wide range of devices and tools to help get the job done:
- An effective physical deterrent, such as a bird statue can be moved around the garden every couple of days. This will stop any animal becoming accustomed to its presence and keep them spooked.
- A sonic device, such as the Sonic Spike, can be placed around the garden at regular intervals. This will help keep away low living pests, as well as insects and underground dwelling animals. Make sure that the sonic devices cover your entire garden, including the entrances to your house – this will stop any creature seeking refuge inside.
- Where possible, make things as difficult as possible for animals. E.g. If the neighbor’s cats keep trying to eat fish from your pond, don’t give them anywhere they can sit and strike.
- Depending on what animals you are dealing with, a scent repellent may come in handy though any pet owners will probably wish to avoid it as it may cause your pet distress.
What gives, I bought this device but the pests don’t seem bothered by it at all.
There could be more than one cause for this type of outcome. Let’s start with acknowledging that animals and pests have a keen ability to adapt. They are resilient and can be quite territorial, even if that territory is your home.
Consider that rodents thrive outdoors, in subways, caves, and even sewers. By nearly any measure, your home is a more hospitable environment so ousting the pests isn’t likely to be an overnight sensation. Just keep that in mind and know what you’re fighting against.
So when you begin a pest repelling regiment, have patience as it may take time for you to notice measureable results. Each pest and product will vary so review your product’s directions and recommendations.
Review your implementation strategy. Have you allowed and escape route for your pests? For example, start at a high floor and “push” the pests our floor by floor.
Check the simple stuff like batteries or be sure the outlet is getting power.
If you’ve carefully followed the above steps then it may be that the product you purchased is simply not effective against the specific pest you’re facing. This can happen. Some pests can adapt to specific frequencies and others display a frustrating yet strangely impressive immunity. In this case a multi-frequency device might help.
For physical deterrents like scarecrows, bird spikes, or motion water sprayers be sure to move them around so a wily pest won’t crack your code.
Is my product guaranteed?
Product quality and performance guarantees are the purview of the manufacturer and/or distributor. From our experience, most companies are proud of their products and are more than willing to stand behind them. Please see the specific guarantees offered for any product you select.
Note, Pest Repeller Center does not warrantee any of the products which we review. However, we try to review only quality products with a track record of success in their given market.
How do I return a faulty or unused product?
Products purchased through Amazon can be returned according to their policy. Unused and unopened items can usually be fully refunded if returned within 30 days of purchase. Products which are faulty must be sent back to the supplier and the process is mediated by Amazon who can help you get a refund or replacement depending on your wishes.
The return process is quite simple and in some cases, the shipping may cost you nothing.
The full policy can be found here – Amazon Return Policy
Did you find an answer to your question? If not, please let us know so we can continue to build out this resource for you and future shoppers.
Thanks!
Are these ultasonic pest repellers safe for people with pacemakers and internal cardiac defibrillators?
Hey Destiny, thanks for your question. Yes, these products are considered safe for pacemakers. As with anything, I’d go with a higher end, name brand product as they are going to have stronger product standards, testing, and QA processes but these products are considered safe or they would not be allowed on the market.
See our updated FAQ for more information.
https://pestrepellercenter.com/pest-repeller-faq/
Hi, I have big pigeon problem with them pooping and destroying our furniture on the balcony. I thought of using the Balcony guard by Bird x, but the research I did about user reviews did don’t help, there are lots of bad reviews about how ultrasonic are not really working. Also many have commented that Balcony Guard by Bird X is not really ultrasonic as they claim and in fact its noisy. I am looking for a solution that will not bother my neighbors but effectively remove the pigeons. I am considering the Balcony Guard. What would you advice? how well this device from Bird X work?
Hey Peter thanks for the question. You know, ultrasonic devices can get a bad rep for 2 reasons. The frequencies of a particular unit may not be tuned for a specific pests. These are not 1 size fits all products. Secondly, it can take time for a device to deliver to its full potential. Think of it like this… if a new noise started up at your place you’d wait for it to stop and it would actually take a while for you to decide to move. Now clearly your decision process will differ from a pest but the idea is similar… they won’t vacate a warm place with a good food supply immediately at the first ultrasonic tone.
Now, with that in mind, let’s think about our options for getting rid of these nasty pigeons.
I like the Yard Gard which we review here – https://pestrepellercenter.com/reviews/review-of-yard-gard-ultrasonic-bird-repeller/
A personal favorite is the Gardeneer Solar Powered Owl Scarecrow. It’s a physical product that should deliver immediate results. We have a review of this product coming out soon and I share a personal story about my dad using a similar tactic to get rid of some pesky birds at his office when I as younger.
Bird Spikes or the Tanglefoot are known to run off birds as well.
https://pestrepellercenter.com/reviews/tanglefoot-bird-repellent-review/
Let us know what you chose and how it works!
Thanks
I just bought the bell + Howell ultrasonic pest repeller. I have a dwarf bunny. 6 months old. Can I use these repellers in my house? Please let me know asap. Ty
Hey Christine. Hard to say without knowing the specific Bell Howel product you have – they offer several – but let me help with the rabbit end of the question.
We have in our FAQ a list of hearing ranges for many common pests and pets. Here’s that link and also a link to a much more comprehensive listing of animal hearing ranges. This is actually a pretty comprehensive study.
https://pestrepellercenter.com/pest-repeller-faq/
http://www.lsu.edu/deafness/HearingRange.html
Let me know which product you select and how it works out. I’d love to add your first hand experience to our site for readers like you.
Thanks.
Will this product repel beneficial insects?
can it be used outside: there is a caveat that it should not be used if exposed to rain or moisture yet there is a note about using in the garden ?????
Hey Christina, great question and the answer is probably a little “eye of the beholder”. Bats, snakes, and spiders are all pretty handy pests to have around but just as many (or more), people want those guys out of sight.
So, what are you wanting to repel vs wanting to keep around? Our FAQ offers some hearing ranges that might help isolate your specific pest.
Thanks for your question.
Question: I have a basement with one half being finished. It is approximately 630 Square feet. It has a dropped ceiling with about 1.5 feet clearance above the panels. This is where the mice end up every fall when the cold weather comes despite my best efforts to seal up all cracks or holes from outside. I purchased 8 Bell and Howell repellers (a mixed pack). Is there a specific way to place them above the panels? Must they be pointed a certain way to be most effective, or can they be laid facing up?? I was thinking of having them “ganged wired” in fours with a switch controlling the power so I can turn them off over the summer. Will that prolong their life. Thanks in advance. The area in question is completely open above the panels.
Hey John, thanks for stopping by again. I think you asked this question yesterday. Here’s a link to the review and you can scroll to the comments where I take a crack at answering.
Thanks
Hi Dave, sorry for sending the same question twice, but I thought I was going to different places. I read your reply and you said “here’s a link to the review” Assuming the link was Dave (in green print indicating a link) but when I click on it I cannot find my question or your answer. What did I do wrong? Thanks for you time!
Hey John, I forgot to post that link. Looks like you already found it but I’ll add it here for reference too.
https://pestrepellercenter.com/reviews/review-of-bell-howell-ultrasonic-pest-repeller-4-pack/
Thanks for circling back!
How do I turn off the motion sensor and have it work continuously in ultrasonic. My instructions are not clear on this.
Hey Don. That’s going to vary a little by product and you don’t happen to mention which one you have. Most have a setting that replicates the tone in a human audible format so you can get a sense for how it’s working – pulse, constant sound or even a fluctuating sound, again, that will differ by product. The manual should step it through or you can reach out to the manufacturer directly via their webpage.
parkaveneux@yahoo.com Plugged in AC and get RED BLINKING-HAVE 4 and FURIOUS NO PHONE ANYWHERE- ANSWER OR CALLING CREDIT CARD CO>
Arthur Yellin, sounds about right. Which product is giving you a rough go? Do you have the manual or have you checked out the manufacturer’s homepage. That’s where I’d direct you first.
Thanks
Is the T3-R effective for repelling existing bats in a log home?
Yeah, I think you’ll have luck with the T3
Dave,
I have bird feeders outside that I want to keep the squirrels away but keep the birds. Do you have an outdoor unit for this and one that will be in direct sunlight and rain, etc?
Tell you what, I’d try the squirrel baffle and see how that works for you. Plus it might just be good for a few laughs.
Check out our review here:
https://pestrepellercenter.com/reviews/squirrel-repellent-and-baffle/
I have the plug in unit. How long can I expect this product to be effective?
Great question and that’s going to vary by product and manufacturer. We have reviews for about 60 different pest repelling products on the market today and there are easily 100 times that many available at any given time. For a question like this, I’d direct you to the manufacturer for their warranty information as that can be a good measuring stick. I’d also recommend the review and questions areas on Amazon. If you post a question there you may get responses from multiple users sharing their experience. You may also have a rep from the manufacturer chime in with some information. Finally, google search the product name along with words like “review” or “quality” to see what other uses of those products are saying.
Hope that helps and good luck Pest Repelling
If I use regular batteries as opposed to the rechargeable ones do I need to wait 24-48 hours to use it?
I’m not sure I understand this question. You’ll want to ensure the batteries are properly charged but they should be ready to go at that point. I can’t think of a reason why you’d want to wait once the batteries are charged. What you might want to consider is having 2 sets of batteries so you can manage the downtime when the first pair is charging.
Thanks