best rodent repellers: photo

If you are tired of the constant attacks of rats and mice, especially in winter, you can’t merely wait for the mice to leave. They won’t do it voluntarily as your house is too good. Take action as it is high time you got rid of these rodents!

Using an electronic ultrasonic pest repeller is one of ways to repel rats and mice, but you’re probably confused as to which model should be used? Are they really effective and how do you use them properly? Our review of top-7 best electronic pest repellers from $19 to $49 will cover these topics.

Do pest repellers work?

I am often asked the question: “Do ultrasonic pest repellers work?”. Well, the answer is not that simple. Do you know what are the benefits of using ultrasound? It is absolutely safe, whereas poisons pose risks. It affects a large number of rodents at once, whereas electronic traps kill just one of them at a time. But I think you will agree that it is the effectiveness that is the most important for us when we select a pest control tool.

If you have a look at customers’ feedback, you will find that opinions dramatically vary. In this case, we should better rely on what scientists say about the effectiveness of ultrasound in deterring rodents. According to them, ultrasonic devices work on rodents as long as the following rules are observed. First, remove soft furniture, curtains, and toys as obstacles absorbing ultrasound. Secondly, place and activate ultrasonic repellers in all rooms simultaneously so that rodents have nothing but flee the house. Thirdly, once mice and rats have left the house, turn off the device, otherwise, their new generations will be able to get used to ultrasound. Fourthly, do not expect immediate effect since sustainable results will be achieved not earlier than two weeks after the device was turned on. Just give the repeller some time to create an unbearable environment for rodents. The noise first disturbs them and, in due course, drives rodents crazy. And finally, you should reduce food availability for rats and mice. As you might know, food is the strongest motivation for animals.

Top-7 Indoor Rodent Repellers from $19 up to $49

There are many similar goods, both old and new styles. The leaders always change, new ones appear and disappear just as quickly, that’s why it is better not to be led by the ads of disposable products and to trust a proven item instead, that is already familiar to the users, and has proven to be effective in usual indoors conditions, such as a typical house. This is just the type of repellers we’ve chosen for this review.

Hoont™ Indoor and Outdoor Ultrasonic Pest Repellers 

Hoont™ Powerful Electronic Animal & Pest RepellerIt's the most stylish repeller line of our review, Hoont Indoor Pest Repellers. Other than being fashionable, they are also known to be sold for a long time and repel not only rodents but also birds and larger animals such as deer. At the moment, though, we are interested in indoor repellers. What other similar devices can boast of an entire line of indoor models in 7 different designs from $10 to $40 a piece? Depending on the particular model, Hoont Repellent repels rodents and insects in different manners: by using ultrasound, blinking lights, and sounds, all together, in turn, and in various combinations.  

Ultrasonic Pest Repeller by Pest Venator – Pack of 4 Plug-In Electronic Repellents for Mice and Rats

The Best Repeller to Get Rid of Mice in the Walls

Rodent Repeller by Pest Venator: photoSometimes we need something special for eliminating the colony of rats in the house. If other sets of repellers can't make your house or office rat-free, it's time to use more powerful devices. The Pest Venator covers up to 3 200 Sq Ft. It is several times more than other budget repellers.  This  device is most cost-saving as well as the simplest and most popular since it only has ultrasound, a night light and sleek design. It is safe for adults, children, and pets and does not interfere with consumer electronics. Place it where the traces of living mice or rats were found, this amount will be enough for all the rooms.

Price:  Pest Venator set ~$39.89 for 4 units Check the current price

Battery Operated Ultrasonic Rat and Mouse Repeller - Electronic Repellent Scarer

Battery Operated Rats & Mice Repeller 

Electronic Repellent Scarer: photoThis small (4.1" x 1") repeller is battery powered. It's a rare case among indoor repellers, because usually you need to plug repellers in electric outlets. This is an advantage, distinguishing it from other repellers of the given rating - you can place it anywhere - and just for the ~$19.99.

The manufactures don’t position it as a universal thing, but only as rats and mice repeller - and it really works like a charm against these rodents. You may use this device both in living rooms and other places including basements, attics, loft spaces, outbuildings, sheds, greenhouses, garages and automobiles - but only indoors, since the repeller is not water resistant, and 9V batteries may be frozen if exposed to cold.

Price: ~$19.99 Check the current price

What to do if rodents have not gone away or if you hear ultrasound?

The negative attitude towards ultrasonic devices comes down to two customer complaints:

The first problem: Why doesn't my ultrasonic repeller work and mice haven’t left my apartment?

Most likely, the problem is related to the wrong use of the device. 1. Soft furniture, carpets, curtains absorb ultrasound, preventing it from being evenly distributed throughout the room. 2. If food which smell attracts rodents is stored in the room, remove it immediately, otherwise, the rodents will go for food through their pain. 3. Arm yourself with patience, it will take some 2-3 weeks of the repeller’s uninterrupted operation before the pests leave your house. You may familiarize yourself with the detailed guidelines in the section entitled “5 Rules of Electronic Pest Control Devices Effectiveness.”

The second problem: The ultrasonic device keeps making this annoying sound that's driving me crazy.

According to scientific data, a very small number of people and small children have extremely sensitive hearing. If you have noticed before that you are too sensitive to sounds, then, perhaps you should better use other methods like poisons and traps.

Also, such things happen as a result of factory settings. Some devices in the batch can be tuned to other frequency which is most probably drive crazy not only rats but people as well. That is why it would be far more advantageous to buy a set of repellers. Based on consumer feedback, if one of the devices is too loud, it may be installed in the garage or shed where it will not disturb you and members of your family while mice will be driven mad.

Home Sentinel Indoor Home Pest Control Repeller 

Home Sentinel Pest Control Repeller: photoThis is one of the veterans of the category, which has been selling long and well. Nearly all manufacturers try to combine various technologies in their brand products. Home Sentinel has combined three options, ultrasound repelling, electromagnetic waves impact, and air ionizing. There is also a night light. One device costs ~$11.29.

The manufacturer promises that electromagnetic waves will force mice and rats to leave the house walls, ultrasound will drive them further away for good, and air ionizing will remove unwanted bacteria attracting pests”. We are not quite sure about the last point, but the device is able to repel small rodents, judging by Amazon customer reviews.

Price: ~$11.29 for 1 unit Check the current price

T3-R Triple High Impact Mice, Rat, Rodent Repeller

Rodent repeller for a large house, attic, or basement (up to 6000 sq. ft)

Judging by reviews, this device is really a powerful one. It has three separate ultrasonic emitters which cover over 180* around the unit with 135+ db blasts of ultrasonic energy that vary in frequency, but whose main targets are rodents like mice, rats, squirrels and chipmunks. Per manufacturer, in most cases rodents leave with-in a 12 - 16 day period. It is the enlarged action radius, as compared with other repellers, that allows T3-R Triple Repeller to get so many positive reviews.

Customers have noted the noiselessness of the repeller and the effect which becomes evident in some days: A girl has confessed that she is no longer afraid of her cat catching a mouse in the attic at night and bringing it into her bed. Other reviews have mentioned not only mice and rats but also chipmunks and squirrels which have been eliminated by T3-R safely and quickly.

Price: ~ from $54.95 Check the current price

Need more cut-rate models? Read our review of the best electronic pest repellers under $25

Pest Repeller for Cars

Not only houses, attics and basements, but also warm vehicles attract rats. They can easily get under the hood, gnaw through the wiring, damage expensive spare parts and leave their feces. Ultrasonic repeller will save you in this case. Unlike other methods, it does not kill rats meaning there’s no terrible cadaveric odor that will haunt you as a consequence. Among all the rodent repellers for cars, we’ve picked two best ones, Under Hood Animal Repeller Car Rat Repeller by VENSMILE and Under Hood Animal Repeller by P3.

rodent repellent for cars: photoBoth operate in a similar way: the devices emit changing ultrasonic waves that irritate the rats and make them flee. Use the supplied connectors to connect the former ~$43.12 Vensmile repeller to the battery. The latter repeller, ~$22 P3 is portable and is powered by two C batteries. It can be screwed, taped with durable tape or simply placed under the hood. According to the manufacturer, it repels other animals as well, including cats. It is also said to be waterproof, so if needed, you can even try it on board a ship.

The two repellers’ ratings vary: the wired one has 4.7 stars out of 5 on Amazon.com while a battery-powered one’s rating is only 3.5 stars. Over 90% of users are satisfied with Vensmile’s performance. Although it requires complicated mounting, it won’t be a problem for an experienced driver. The customers appreciate the P3 Repeller’s portability and long battery life (up to six months). The users share a life hack: it can also be used to protect a BBQ, lawn mower, etc. However, in the end not, more than 60% of users consider it effective.

Price of Car Rat Repeller by Vensmile: ~$43.12 Check the current price

Price of Car Rat Repeller by P3: ~$22 Check the current price

Indoor Rodent Repellers Comparison Chart

Model Operating mode Coverage area Price

Pest Venator Ultrasonic Pest Repeller

Rodent Repeller by Pest Venator min: photo

Powered by an outlet

 covers up to 3200 sq.ft. 

~$39.89 (4-pack)

Home Sentinel 

Home Sentinel Pest Control Repeller min: photo

Powered by an outlet up to 5000 sq ft 

~$11.29

Battery Operated Ultrasonic Repeller

Electronic Repellent Scarer min: photo

Powered by batteries up to 2500 sq ft

~$19.99

T3-R Triple High Impact Repeller

Rodent repeller T-3R min: photo

Powered by an outlet up to 6000 sq ft

from ~$54.95

Under Hood Repeller by VENSMILE

Car Rat Repeller by Vensmile min: photo

Powered by a 12V battery up to few feet diameter circle 

~$43.12

Under Hood Portable Animal Repeller by P3

Under Hood Rodent Repeller min: photo

Powered by batteries  up to few feet diameter circle

~$22

Pest Repeller Effectiveness: All the Truth and 5 Useful Tips

How did the electronic repellers appear? It all started back in 1972 when Bob Brown of Pine Valley, California, a simple boy next door, forgot to plug out his mis-wired electric guitar in his shop. As a result of his absent mind, dozens of dead rats and mice were found around the building. This case has become to him what a fallen apple was to Newton; he was inspired to invent an electronic pest repeller called AMIGO. That repeller emitted electromagnetic waves of required frequency, which disoriented pests and led them into stress, forcing to leave the habitat, be it a house or a backyard. Current devices echo those first electronic pest repellers of the 70s. Do they work the same way? How are they effective against rats and mice?

The use of electronic repellents is quite debatable. The scientists agree that this is not the most effective means of getting rid of mice and rats. The University of California Agriculture and Natural Resources scientists claim that “although mice are easily frightened by strange or unfamiliar noises, they quickly become accustomed to regularly repeated sounds. Ultrasonic sounds, those above the range of human hearing, have very limited use in rodent control, because they are directional and don’t penetrate behind objects”. The scientists’ main argument is that both mice and rats get used to the ultrasound and stop being driven away by it.

rodent repellers: photo

But on the other hand, if we take a look at the sales statistics of Amazon.com, the world’s biggest online retailer, we’ll see that millions of electronic repellents are sold! And they are Best Sellers in Pest Control Products. Most of the customers are satisfied and leave detailed reviews. The best sellers’ rating are also very high as they reach 4.6 out of 5 stars. Many people are afraid of dealing with poisons or having to figure out traps, and so they try to do with natural and safe mice repelling methods.

When we draw up our articles, we try to rely on the scientific opinion. But we have managed to eliminate the rats ourselves very quickly just with the help of an electronic repellent! The rodents left our house within a few days after using it, and never came back.

Perhaps, the truth lies somewhere in the middle. So if you manage to repel the rodents from your house and then you’ll carry out some preventive measures, thing will be great. The decision is up to you.

The Problems with Electronic Pest Control. How do ultrasonic pest repellers work?

1. Repel or Lure? Repellers vs. Baits

If you have chosen the ultrasonic repeller against rodents, you have to refuse all other ways of “hunting.”

All other baits and traps are to be removed. It may be electric mouse trap or snap one. You can’t repel and lure at the same time. These two ways of elimination are diametrically opposed. Their combined usage will lead to nothing.  

Baits with poison don’t add to the repeller’s action, on the contrary, they diminish its effect to zero. Rats (or mice) repelled by ultrasound would have left your rooms long ago if it were not for the attractive smell of food in baits or traps. So you have to use an electronic repeller or a rat bait station, not both.

2. How do Repellers Act on Rodents?

Ultrasound repellers are designed to drive away rodents already present in home, they can’t prevent their appearance.  

Rats and mice exposed to ultrasound become shocked and look like benumbed at first. They can’t perceive the source of strong discomfort getting on their nerves. They can’t immediately perceive what’s going on, therefore, you may see a rat running around or standing in stupor in the first days of the repeller’s usage.  

After a while, rodents begin to understand that something is wrong, and try to leave the zone of ultrasound action. Thus, the time of rodents’ disappearing may take from 3-4 days to 3-4 weeks.  

3. Why Doesn't My Ultrasonic Repeller Work?

If there is no soft furniture, curtains, carpets and other soft things in the room, then the ultrasound can fill all space due to multiple reflecting from walls, ceiling and floor. Where there is soft furniture and other things absorbing ultrasound, the reflected ultrasound will be minimal or absent. If this is the case, you’d better use more powerful ultrasonic repeller. The power supply will compensate the absence of reflected ultrasound in some degree.  

4. How Many Repellers are Needed in a Home?

For apartments and country houses, one rodent repeller per floor, as well as one in the basement and one in attic will be minimal. A repeller is necessary for every isolated section in basement.  Also, it is necessary in kitchens and bathrooms of apartments (where rodents can enter by means of a stand-pipe). For storage places you should consider the amount of products to determine the number of repellers.  

It is a fact that placing repellers where there are shelves with linen sacks filled with food products (i.e. something porous) the ultrasound simply “sinks” into the sacks. If a situation like that has only one repeller, it will act on a very small area around itself. Therefore, the placing of that sort requires several ultrasonic rodent repellers.

But if you need to repel pesky rats in your yard, you'd better try to use special outdoor repeller - read about the best one in our Yard Sentinel Electronic Repeller review.

5. Off or On?

In accordance with the manufacturers’ opinion, we recommend turning the repellers off immediately after complete disappearance of rodents.

how to repel rats: photo

You should understand the principle of driving rodents out of the place where the ultrasonic repeller has been located. It is based on sharp and negative alteration of the living conditions which the rodents have already got accustomed to. Before this sad event has happened in their life, they were safe, calm and confident – well-oriented in the surroundings.   

Once the ultrasonic repeller is turned on, everything changes suddenly. An unknown sound irritates and causes a strong discomfort, or even earaches in rats. Now rodents have to avoid rooms exposed to ultrasound and seek new feeding sources in any other place. But the scenario can be quite different if you have placed the repeller for the sake of prevention, before mice appear in your home.  

Let’s think. Sometimes customers say that their repeller has stopped working. It has been working and repelling successfully for some initial period, but in a while, mice and rats have returned and stayed forever. They simply don’t care about the repeller.    

As a rule, one circumstance becomes evident: even though the rodents had left, the repeller went on working. The device was not turned off. The next family of rodents was likely to move into and settle down. Exposed to ultrasound from the very beginning, they got accustomed to it, and since then, they get on very well. If that was the case, the only way out is to change the repeller’s brand. Or use other methods and products: Read How to get rid of mice.

My Experience Of Using Pest Venator Rodent Repeller

Well, the best way of understanding the principle of operation of one or another device is to try it. More importantly, you will know from your own experience whether electronic pest repellers are successful, particularly in frightening off rats and mice. Actually, the issue is divisive and many researchers uphold the view that ultrasonic devices don’t function as advertised or, at least, affect rodents just for a short period of time. So, I will tell you about my own research allowing me to draw independent conclusions. For my study, I have picked PEST VENATOR, an ultrasonic rodent repeller that has just come onto the market. It should be exploited indoors — right where we are plagued by invasions of rats or mice.

All the more so as I had faced the rodent problem in my own suburban cottage. This whole thing started in autumn. At first, mice settled in the storehouse where I keep heaps of old stuff and provision supplies. It was that place — warm and abundant in food — that attracted them. Traps and poisons I placed there killed some of the intruders but failed to eradicate them en masse. Eventually, the rodents migrated into the house, therefore, there was an urgent need for a more vigorous action.

Why have I decided in favor of PEST VENATOR? It neither poses hazards to people nor does it cause discomfort since ultrasound it emits is inaudible to the average person. But above all, this is a solution of the rodent problem without bloodshed. Not only is it humane, but it also allows for avoiding unsanitary conditions in hard-to-reach sites where usually poisoned rats and mice go to die. Since I know what kind of risk a decomposing body poses, I preferred not to have this living nightmare in my house.

So, I installed several such electronic pest repellers in the rooms and… Bingo! I have got impressive results far exceeded expectations: a week of intensive ultrasound treatment and all mice have been chased out of the house. In fact, I started observing first positive effects 4 days after the unit was activated.

What Components Does This Rodent Repeller Comprise?

It does not take an engineer to understand the way the device operates. Just plug this rat repeller into an outlet and remove all soft objects located close to it. But if you are a stickler for detail — and I am totally that kind of person — you might want to look under the hood of this unit. I took it apart hands down, just removed a screw on the lower part and a catch on the upper part of it.

The first thing that strikes the eye is the quality circuit board inside the unit, nothing like a kind of point-to-point wiring made by low-skilled workers. In general, there are typical components and I haven’t seen anything unusual. What has pleasantly impressed me was the fuse because now I’m sure that no ignition will occur in case of power spikes.

Inside Pest Repeller: photo

The ultrasonic transmitter is rugged and protected by the security box. So, I don’t have any concerns regarding whether this rat repeller functions well. The device’s operating principle is clear to me — the point is a high-frequency blow to the mental psyche of rodents. For such animals as rats and mice, this kind of psychological warfare turns out to be unbearable, given that it is waged consistently during about two weeks.

Should You Worry About Your Pets When Pest Venator Is On?

If your pet is the hamster or any similar species related to rodents, yes, you should. This rat repeller will make them gone crazy, something that can only come to a sad end for your tiny friends. The unit generates sound waves which are quite similar to sounds of music produced by cell phones, TV sets or just when we are talking to each other. The thing is that the frequency of ultrasound is extremely high, exceeding 20 kHz. Regarding this very device, its frequency is as high as 50 kHz, more specifically, about three times above the human capacity of hearing. Normally, we cannot hear noises of a frequency over 18 kHz, with some extraordinary people being capable of perceiving sounds as high as 20 kHz. But this is a maximum limit. So, exploiting peculiarities of rodents’ biology, we have more chances of defeating them.

But what about pets like dogs and cats? Could electronic pest repellers harm them? Speaking from my experience, I can state that rat repellers are totally safe for these species. My samples of PEST VENATOR were operating throughout a week while my cat, unwittingly, took part in the experiment. What happened? Nothing. Actually, they peacefully coexisted even at direct contact. You may appreciate a passionless reaction of my cat in the picture below. No uncharacteristic emotions, no sign of agitation. It seems that the cat did not care about the rodent repeller at all. I placed the unit right on the cat but that didn’t turn things around. At first, the cat ignored it, then figured out that it was something like a new plaything. Put another way, nothing close to fear or confusion. From the picture #2, you can see the cat lying right below the rodent repeller. Similar observations were made in this case.

If you are a farmer, it is worth noting that electronic pest repellers can also be applied near the livestock and poultry without causing damage to them. Mount the devices in hen coop or cowstall and rest assured that your animals will not be affected by ultrasound.

cat and venator: photo

Advantages of PEST VENATOR

  • It takes a week to case all rodents out of the house. At the same time, other residents of the house are fine and enjoy a mouse-free life.
  • For the cat, this rat repeller is at most nothing short of a plastic plaything. Until the animal gets bored with it.
  • One set including four items is sufficient for a cottage, given that it is not too large though, or for the entire annex to the building.
  • At the nighttime, the rat repeller operates as a night driver. A single diode will not increase the energy consumption in your household or influence your spending on electricity.

ultrasonic pest repeller: photo

Are There Any Disadvantages?

  • For me personally, the light is too bright. But again, these are my peculiar likings since I prefer a complete darkness in the room where I sleep. For this reason, at night, I turned on this rodent repeller solely in the hall.
  • When I just started using the unit, my wife was complaining of a headache. Initially, we decided that the rat repeller might have caused the headache. But as a scientist, I always take into consideration all possible factors before drawing conclusions. So, as it has appeared, we were wrong in our judgments and the pain had nothing to do with the rodent repeller. It was unfavorable weather conditions that made her feel ill.

Now, shifting from my experience to a critical look at this type of electronic pest repellers, I would highlight the necessity to address various external factors. This primarily concerns how bad it is. If your house is attacked by the army or mice, if they have already established their nests and began to breed in the crawling spaces, then, these intruders will not be easy to eradicate. A comprehensive approach and, perhaps, professional help will be needed. Another crucial aspect is ambient medium. Urban noises are so powerful that they are capable of neutralizing the impact of electronic pest repellers. In other words, if you live near a rail terminal, ultrasound would not be the appropriate weapon against rats and mice. In such areas, animals habituate to noises, whereas rural rodents are much easier to frighten off by any unusual sound.

On a final note, I would like to call on people to think more about prevention. And this is where electronic pest repellers are the most effective and appropriate. Once you mounted a couple of rat repellers on the walls, a climate of fear will be created there for rodents so that they will just avoid it.

Indoor Rodent Repellers Comparison Chart

Model Operating mode Coverage area Price

Pest Venator Ultrasonic Pest Repeller

Rodent Repeller by Pest Venator min: photo

Powered by an outlet

 covers up to 3200 sq.ft. 

~$39.89 (4-pack)

Home Sentinel 

Home Sentinel Pest Control Repeller min: photo

Powered by an outlet up to 5000 sq ft 

~$17.29

Battery Operated Ultrasonic Repeller

Electronic Repellent Scarer min: photo

Powered by batteries up to 2500 sq ft

~$19.99

T3-R Triple High Impact Repeller

Rodent repeller T-3R min: photo

Powered by an outlet up to 6000 sq ft

from ~$54.95

Under Hood Repeller by VENSMILE

Car Rat Repeller by Vensmile min: photo

Powered by a 12V battery up to few feet diameter circle 

~$16.99

Under Hood Portable Animal Repeller by P3

Under Hood Rodent Repeller min: photo

Powered by batteries  up to few feet diameter circle

~$24.36