Bedbug repellers: do they really work?

An ultrasonic bedbug repeller is a device that emits sound waves in the high frequency range. They are not perceived by the human ear. Many insects, animals and birds are able to hear these sounds. But why should they be afraid of ultrasound? Scientists have found that some insects communicate with each other using high-frequency sounds. The powerful ultrasonic signal emanating from the device should be associated with danger in insects and encourage them to immediately leave the room.

On a note!

The ultrasonic waves that the device is supposed to emit cannot be heard. If the device makes any sounds at different volume levels, it is faulty.

At the moment, researchers have not proven whether house bugs produce sounds at the same frequencies that most repellents emit. According to advertising, an ultrasonic device can repel bedbugs and force them to leave the apartment. Some manufacturers claim that their electronic products can kill insects by emitting low-frequency waves that have a detrimental effect on the nervous system of bedbugs.

Bedbugs: getting to know the pest

The main difference between bedbugs and other insects is their oral cavity. The mouth of almost all insects is tripled so that the animal can bite, while the bug is not capable of biting anything. Its mouthparts can only suck. Bed bugs feed by sucking fluids from plants, but in most cases, bed bugs feed on blood.

The sucking part of the bug's mouth is called the proboscis and is significantly different in appearance from the mouth of other insects. This can be easily seen under a microscope. The mouth of bedbugs is more like a long beak and is used by the insect in much the same way as a person uses a straw when drinking milk or juice.

If you take a closer look at insects that, like bedbugs, have a proboscis, then in almost all of them it is removed. Insects such as a butterfly or bee may remove their proboscis while moving from one food source to another. Bedbugs have a much more rigid mouthparts that cannot be folded. But there is also a plus to this. Due to this rigidity, bedbugs are able to break through harder obstacles than plant leaves when searching for food.

How to use it correctly

The product is sold in the form of a concentrated liquid, which must be used to prepare a solution. The drug is accompanied by instructions for use, which provide information regarding the proportion for preparing the solution for each type of insect. Changing the proportions yourself is prohibited. To kill cockroaches, use the following proportions: 5 ml should be used per liter of water. facilities.

Remember that you will be working with a toxic chemical, so the use of protective equipment is required. All safety measures must be observed so as not to harm the health of people and animals living in the apartment.

At the first stage, it is necessary to prepare the premises. You always need to take into account the degree of contamination of the room. If the infection is severe, a full treatment of the entire room will be required; if the infection is minor, you can apply the product in the kitchen, toilet and bathroom.

Required:

• Move the furniture away from the walls so that you can treat the baseboards and back walls of the furniture.
• Hide all food products in sealed bags and containers.
• Remove all dishes, kitchen utensils, towels and personal hygiene products.
• Next, sweep, remove cobwebs and dust, and wet clean.

Treatment

The preparation of the solution, as well as the treatment itself, is carried out using protective equipment. It is necessary to wear protective overalls, you can use pants and a long-sleeved jacket. Choose shoes that can be easily washed off with water after the procedure. Rubber gloves, safety glasses and a respirator are also used. The substance must not be allowed to come into contact with the skin, mucous membranes or respiratory tract. When the solution is prepared, it is poured into a spray bottle.

It is necessary to apply the substance to those surfaces where the Prussians have been seen, as well as to those places where they are most likely to appear. Treat baseboards around the entire perimeter, the back and bottom of cabinets, behind the refrigerator, radiator; be sure to treat pipes, the bottom of the sink, and washbasin. In the bathroom and toilet we apply the substance to corners, pipes, and ventilation holes.

After the procedure, you need to remove protective equipment, change clothes, wash your hands with soap, and wash your face. The room must be left for at least 2 hours, with the windows closed.

Upon returning to the apartment, it is necessary to ventilate it well, it is better to create a draft. Next, prepare a soap solution and treat absolutely all surfaces with which a person comes into contact.

It is especially important to pay attention to cleaning when children and animals live in the apartment. Contact with the drug may cause serious consequences. The pesticide remains only in hard-to-reach places

The pesticide remains only in hard-to-reach places.

Preventive actions

After the procedure, it is imperative to pay maximum attention to preventive actions, as this will protect against the appearance of new pests. Do wet cleaning more often, wash dishes after each preparation and meal.

Keep the table and work surfaces clean and remove crumbs. Do not leave food on surfaces. Take out the trash daily and wash the trash can. After washing dishes, wipe the sink dry. Eliminate water leaks and seal all cracks. Use preventive measures, you can turn to traditional methods.

Scale of the problem

One of the main misconceptions people have about bedbugs is that the vast majority of people believe that bedbugs live on the object of their parasitism. In fact, this is far from the case.

Bed bugs do not live on a dog or cat; they live where the parasitizing object most often appears. And, alas, this is usually the home of the animal's owners. Bedbugs live and breed in tiny cracks in floors or carpets. With an average insect size of 1.5-2 millimeters, entire colonies of tiny bedbugs can live alongside people for decades. At the same time, people will never see them anywhere except in the fur of their pet.

Bedbugs do not live on animal fur; they jump on it from time to time to drink its blood. And one more very important point - if you look at the animal’s fur, it may seem that there are not so many bedbugs, but you need to understand that these are not all insects! This is only a tiny part of them, and all the rest are jumping somewhere around the house in search of food.

Instructions for use

In order to effectively deal with parasites, take a cylinder with “Insecticide” so that it is vertical. It is taken twenty centimeters away from the place where insects accumulate and spraying begins.

In order for the treatment to be effective, it is necessary to divide the entire surface into intended squares and thoroughly disinfect each of them for ten seconds.

This is interesting! It is better to fight insects in the warm season, since the greatest effectiveness of “Insecticide” is observed in the range from 15 to 25 degrees Celsius. As soon as the temperature becomes significantly higher or lower, it is recommended to postpone treatment.

The room must be prepared for processing. You need to take toothbrushes, baby clothes and groceries out of reach. Clothes and bedding should be wrapped in airtight bags. Pet bowls should also be kept securely hidden.

It requires very careful inspection and careful processing:

• beds;
• mattresses;
• sofas;
• armchairs;
• cracks in the floor;
• spaces behind cabinets;
• furniture;
• baseboard;
• the back of a floor or wall rug;
• spaces behind the wallpaper;
• electrical outlets;
• batteries;
• doorways, etc.

Then the windows, doors and vents are tightly closed for twenty minutes. Afterwards, the apartment must be well ventilated. It is best to create a draft so that all odors disappear.

Protective equipment

Then use a mixture of soap and soda to wipe all surfaces in the house.

Particular attention should be paid to door handles, tables, bedside tables, armrests or shelves. This cleaning is done to ensure that family members do not accidentally come into contact with the toxic substance.

The drug is quite toxic, so precautions must be taken. Before starting sanitization, you must put on thick rubber gloves on your hands and protect your face with a bandage.

Eyes must be covered with glasses.

After finishing disinfection, you need to wash or throw away the clothes you wore, take a shower and rinse your mouth thoroughly.

If you were unable to protect yourself and the substance got on your body, you should treat the areas in contact with it with soda.

What to do if bedbugs have declared war on you?

Bedbugs almost never attack humans. An exception may be cases when there was an animal in the house for a certain time, whose presence created the opportunity for bedbugs to live and reproduce. Then this pet disappeared from the house, and the bedbugs had no food left. In such a situation, they will have no choice but to find a new source of life support, and the bug will attack the person.

They will jump on your feet, bite and run away long before the person begins to feel itching on the skin. In such situations, socks and trousers will not help. These microscopic parasites will crawl through any tissue in search of food.

If this has already happened, then it is too late to bring a new cat into the house so that they start eating it. They will now only bite people. It makes no sense to hope to starve them by leaving the apartment for a few days. Experiments on bedbugs have shown that these parasites can live absolutely without food from two to eighteen months. And if this problem seems funny to someone, then they simply do not understand how tenacious these creatures are, and how incredibly difficult it is to get rid of them. If you do everything correctly, you can get rid of bedbugs with ultrasound. We will try to find out whether this is really so.

Are bedbugs afraid of ultrasound?

According to data obtained from real experiments, almost all animals react to ultrasound and avoid it in all available ways. Each of them has its own sensitivity threshold. Ultrasound power is measured in kilohertz.

• Small mammals such as dogs and cats respond to the 22-25 kHz range.
• Rats and other rodents have a sensitivity threshold of 60-72 kHz.
• Bedbugs, fleas, spiders, cockroaches, mosquitoes, flies and other small flying insects respond to readings of 38-44 kHz.
• Lizards are exposed to ultrasound at 52-60 kHz.

So if anyone has a question whether ultrasound helps or not against bedbugs, the answer is, of course, yes. The only question that remains open is the power of the ultrasound source. If it is higher than 38 kHz, bedbugs won't stand a chance.

Market offers

Now on the market you can find several types of ultrasonic devices against crawling insects. Manufacturers promise quick and long-term expulsion of bedbugs and cockroaches from your home or apartment. Take, for example, the Bulgarian engineering miracle EMR-21, which can repel rodents, ants, mosquitoes, flies, cockroaches, centipedes, bedbugs and even annoying neighbors.

Russian manufacturers produce several devices at once, the most famous of them are the Eco-Sniper 9BLS-989 and Typhoon LS-500. In the second, the developers installed a microcircuit that is responsible for constantly changing the frequency of the ultrasonic wave. This is done so that insects cannot get used to the irritating signal coming from the device.

There is also a specialized ultrasonic bedbug repeller UP-116T on the market, made to combat crawling insects exclusively. Since the device is special, its price is at a special high level.

Not without Chinese manufacturers, who offered a whole range of repellent devices operating on ultrasound and magnetic fields. For example, in the AR-130 Smart-Sensor, parasites are dealt a double blow at once and such a miracle of technology costs only about $10.

What is ultrasound

Humans have a limited hearing range. The human ear can perceive sound in the frequency range from 20 hertz to 20 kilohertz. Sound purity below 20 hertz is subtonal sound or infrasound, and above 20 kilohertz is ultrasound.

A person is not sensitive to such waves because the eardrum of his ear is not capable of vibrating as quickly as ultrasound. Sound above 20 kHz is at a very high frequency, so its waves are much more powerful than normal ones in terms of impact on objects.

UP-116T

Universal bedbug repeller UP-116T

A universal repeller of bedbugs and other parasites, emitting electromagnetic waves at low frequencies that negatively affect insects. During operation, the device changes the frequency of the waves, which prevents pests from becoming accustomed and adapting to the action of the product.

The device operates on AC power. In addition to the emitter, the device has a built-in air ionizer that can clean and disinfect the room from bacteria. The device is often used in hotels, baths, and cottages.

• signal coverage area 300 sq. meters;
• number of speakers: 2;
• power supply: 220 V;
• presence of an air ionizer;
• the price is about 2000 rubles.

Animals and ultrasound

Although the human ear is not affected by ultrasound, many animals can both hear and produce it. Many rodents, small mammals, insects, as well as bedbugs use ultrasound as a means of communication.

Bedbugs have hypersensitive hearing organs and therefore can perceive incredibly high frequencies. Cockroaches have "sensory antennae" that are used to sense ultrasound. Spiders, wasps, beetles and flies have a tympanic membrane to detect ultrasound. Male mosquitoes use such frequencies to attract females. Lizards also have the ability to perceive ultrasonic vibrations.

What is the composition of insecticide?

Insecticide is a fairly modern remedy. It was developed by an institute that deals with problems of this nature. This is practically the only product that is designed specifically to kill bedbugs. It does not work for other insects.

The photo shows the packaging of Klopomor

As a rule, when choosing a bedbug killer, people want it to be effective and safe. In terms of effectiveness, this product is one of the best. But his security is not very high

Therefore, if you decide to use this remedy, pay special attention to protecting your body and your loved ones

The product contains substances such as piperonyl butoxide, permethrin and cyperiethrin. The drug has a shelf life of about two years. Do not store it near food under any circumstances. You can get severe poisoning. Insecticide is developed on a natural basis; it is recommended to dilute it with warm water. And also if you are allergic, it is better not to use this remedy, as a serious allergic reaction may develop.

The effect of high frequencies on bedbugs

How do ultrasonic bedbug repellers affect their body? Bedbugs have ultrasonic sensors, and when frequencies of 38-44 kHz or higher are emitted by the repeller and reach these sensors, the bug begins to feel fear and confusion. The animal becomes completely disoriented, it feels a sharp pain, and in the first seconds it does not understand which direction the source is and where it needs to run.

Ultrasound creates severe stress in the animal’s nervous system. It completely suppresses his own ability to produce ultrasound. Exposure to such a high frequency can briefly numb the animal, after which it identifies the source and tries to move away from it as quickly as possible.

Ultrasound creates strong pressure on the eardrum of bedbugs, and therefore the insects run away. Does ultrasound help kill bedbugs? No. Ultrasound cannot kill an insect, but at the same time it creates such impossible conditions for the parasite that the latter has no choice but to flee from the affected area.

Operating principle

A modern electronic bed bug repeller operates on the basis of ultrasonic and magnetic waves. The most common models are with ultrasound. A special sensor generates high-frequency vibrations that are imperceptible to the human ear. With constant exposure to insects, they cause discomfort and disorientation in space. The normal functioning of bedbugs is disrupted, after which the insects begin to look for a new shelter and breeding sites.

The most effective are considered to be combined devices that generate ultrasonic and magnetic waves. Double exposure to the repeller allows you to get rid of bedbugs in the room much faster. At the same time, the device remains safe for humans. High-frequency vibrations affect the central nervous system of insects, causing discomfort. Parasites stop feeding, reproducing, and after a while they leave the apartment or house.

Interesting facts about ultrasound and mosquitoes

Male mosquitoes are the natural enemies of females of their species after breeding. Few people know that in fact, both males and females use plant sap rather than human blood as food. The mosquito has become man's worst enemy because females need protein from human blood to mature their eggs. Males never bite people, only females do this, and only after mating. This gives them the opportunity to obtain blood, which is vital for raising offspring.

And there is one more interesting feature. Females and males are at enmity with each other; more or less tolerable relations between them are possible only at the moment of mating. And therefore, after reproduction, females avoid males as best they can. The most important way to detect their presence is the 38 kHz ultrasound that males emit through their antennae. Working at this frequency, the ultrasonic repeller imitates the presence of a male for females, so they fly away.

Development prospects

Currently, radio frequency devices are being tested that do not repel bedbugs, but, on the contrary, attract them. The action is similar to ultrasonic traps for cockroaches and ants. Only in the case of bedbugs it is much more difficult to do this. The principle of operation is based on the fact that when an insect enters a certain area, it is subjected to a fatal attack of sound waves. The body continues to remain in its place. As a result of further exposure, it begins to emit pheromones, which attract “relatives” better than any bait.

It is difficult to imagine the cost of the device when it appears on the market. But the possibility cannot be ruled out that in 10 years it will replace insecticidal preparations and other means of combating bedbugs.

How effective the miracle device is can be judged from the reviews of ordinary users. Because even the opinions of scientists on this matter are divided. Some argue that bedbugs are completely insensitive to this kind of sound, while others cite examples of effective research in favor of repellers.

However, the fact remains that ultrasonic waves are not a lethal weapon for bedbugs. If we assume that everyone starts using them, insects will simply wander from place to place. One day they will come see you again.

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Smartphone against bedbugs

Can a mobile application replace a full-fledged ultrasonic bedbug repeller? Is it true that a regular smartphone can help in the fight against mosquitoes or bedbugs? In phone app stores you can find many different programs for mobile devices that promise effective removal of bedbugs with ultrasound. Many scientists are very skeptical about such a statement.

Renowned entomologist Bart Knoles once experimented with a smartphone app to see if ultrasound worked on bedbugs. He downloaded it to his iPhone, turned it on full blast, and placed it in a box of bedbugs. Either the insects showed a truly Spartan character and did not allow themselves to be broken, or the phone application turned out to be a simple scam, but the bedbugs showed absolutely no reaction.

Natural repellers

In addition to electronic devices, natural plant components have been found to have an effective effect on bed bugs

It is very important that they emit a strong odor. Only in this case can you achieve a good result

Bedbugs really don't like the smell of some plants. These include tansy, wormwood, lavender, and bugs. They try to keep them away from the plants themselves, since their juice and enzymes are negatively perceived by insects.

However, if bloodsuckers are extremely hungry, they are willing to ignore their aversion to these odors. They will even be ready to climb into bed smoked with lavender. Therefore, fumigators with natural plant components can be used as a temporary repellent for bed bugs if it is not possible to use other means against parasites.

Of course, natural repellers will have absolutely no effect on egg laying that was laid in the owners’ house.

Therefore, you can use natural ingredients temporarily until the owners are ready to use chemicals or install electronic devices against insects.

Electromagnetic waves in the fight against bedbugs

There are many available bedbug repellers on the market that use two methods to control pests: ultrasound and electromagnetic waves. Manufacturers claim that their devices are more effective. Scientists at the University of Colorado conducted a study with devices that combined ultrasound and electromagnetic waves. The results showed that the effect of such devices is indeed stronger than the effect of ultrasound against bedbugs without magnetic waves.

Many people believe that nowadays it is very difficult to avoid the harmful effects of various dangerous chemicals. However, their impact can be significantly minimized through the use of modern technologies. Of course, chemical repellents are much more effective than conventional ultrasonic bedbug repellers. But if high-frequency sound is used in combination with electromagnetic waves, such a device is practically in no way inferior in effectiveness to repellents. But in terms of the impact on the user’s health, the difference is huge.

Review of popular models

Ultrasonic and electromagnetic devices are recommended for use in premises for various purposes, including kitchens, bedrooms and storerooms.

Typhoon LS-500

The ultrasonic repeller Typhoon LS-500 will cope not only with bedbugs, but also with cockroaches, covering an area of ​​up to 80 m2. The operating principle of the Typhoon repeller is based on the operation of a special microcircuit that constantly changes the frequency and duration of ultrasonic pulses, which guarantees that insects will not adapt to them.

The device will protect the house from uninvited guests such as bedbugs and cockroaches

Ultrasound does not pass through walls, thick fabric, doors or other obstructions, so you will most likely need to use one device for each room. The required effect, according to the developers, is achieved in the second to fourth week from the moment the gadget is turned on.

Tornado OTAR-2

The universal device Tornado OTAR-2 repels not only bedbugs, but also cockroaches, fleas, ants and spiders. This ultrasonic device is easy to use and provides additional light exposure to insects.

OTAR-2 is reliable and easy to use

The best result is achieved when installing the device in an open space and at a height of one to one and a half meters above the floor. A slight deviation of the repeller relative to the vertical axis is acceptable. The room should be treated again after a week.

EcoSniper LS-919

A universal ultrasonic device that works against bedbugs and other insects. LS-919 will help get rid of pests by treating the room with powerful pulses of ultra-high frequency sound waves, which provoke stress and panic attacks in parasites. As a result, bedbugs move away from the device’s coverage area.

Ultrasonic waves emitted by LS-919 cause panic attacks and stress in parasites

EcoSniper LS-919 operates from a standard electrical network. The maximum effect is achieved after two to five weeks of constant operation of the device. When installing the gadget, you should take into account that carpets, walls and upholstered furniture prevent the propagation of ultrasound.

Hawk MT-04

The manufacturer emphasizes that the Hawk covers an area of ​​up to 150 m2 and can operate in one of three modes. The first is the most effective fixed-frequency mode, but with the risk of insects becoming accustomed to the radiation. The second is the effect of rapid frequency conversion, which does not cause adaptation in bedbugs. The third mode is a slow frequency conversion with no addiction and a long-lasting effect.

The device can operate in three manually switchable modes

Hawk MT-04 can be used in premises for various purposes.

WK 0600 CIX Weitech

The ultrasonic repeller WK 0600 CIX Weitech is a rare device in terms of parameters such as price and quality, which can be classified as professional. This statement is based on the carefully thought-out design of the device, high-quality components and the impressive power of the gadget.

Repeller WK 0600 CIX Weitech can easily be classified as a professional gadget

WK 0600 CIX Weitech contains two sensors, which gives a wider radiation pattern, and can operate in nine modes, which allows you to select the most optimal level of impact on pests. For the first two weeks, continuous operation of the device is recommended. After this, the emitter is turned on at night for preventive purposes.

Pest Reject

The Pest Reject bedbug repeller operates in ultrasound and magnetic resonance radiation modes, which leads to nervous exhaustion of insects and forces them to leave the coverage area of ​​the device.

The device can operate in both ultrasound and electromagnetic radiation modes

Pest Reject is positioned by manufacturers and dealers as an ultra-compact, but powerful and versatile means of pest control, including bedbugs. The brand has been successfully advertised, and the low cost of the gadget attracts buyers like a magnet. However, it is worth considering that the manufacturer can supply only the cheapest components to a device costing 400–500 rubles, and this fact alone causes conflicting opinions. Reviews from the majority of consumers of this repeller only increase doubts about its effectiveness.

Table: comparative characteristics of the most popular bedbug repellers

These parameters (except for the cost of the device) are indicated by the manufacturers and may differ from the actual ones.

Is it safe for people?

Ultrasonic repellers are widely used in homes, gardens and farms to successfully treat bed bugs. Commercial instruments are designed to operate in the range from 20 kHz to 100 kHz. Ultrasound above 20 kHz cannot be heard by adults, but children can hear sounds up to 30 kHz.

Almost every home has a lot of devices that emit ultrasound. A mobile phone, computer, or vacuum cleaner are sources of such a signal, but do not cause any harm to human health. Ultrasound is considered the safest way to examine pregnant women; it is this technology that the ultrasound machine uses. Ultrasound is also used in cardiac echocardiogram. According to scientific research, high frequencies cannot harm human health.

The most popular ultrasonic repellers and prices:

• Thermacell Outdoor Electronic Repellent. Price: 1,600 rubles.

• Thermacell Insect Repelling Lantern. Price: 1,340 rubles.

• Pest Reject Ultrasonic Bug Repellent. Price: 2,680 rubles.

• Home Sentinel Electromagnetic, Ionic & Ultrasonic Insect Repellent. Price: 800 rubles.

• SOARING Ultrasonic Bug Repellent. Price: 1,270 rubles.

• Clip-on Bug Repellent Fan, 2 Packs. Price: 1,000 rubles.

Principle of operation

The work of such repellers is to create magnetic resonance or ultrasonic pulses that affect bedbugs and other insects. The impulse only allows you to scare away the insect, but does not cause any harm. Almost all devices are universal, so they can be used against many pests.

Electromagnetic

In such devices, a magnetic resonance oscillation is created, it affects the parasite, and it leaves the area where it senses it.

Features of such devices:

• It is worth considering that the radiation that the device creates affects not only insects, they have an effect on people and animals.
• Also keep in mind that the egg laying remains unaffected, since the impulses do not affect them in any way, so you will need to turn on the device from time to time throughout the month.

Often, after the device is turned off, the parasites return to their territory. This situation arises because bedbugs are not the type of insect that travels long distances. Therefore, when they hear danger, they retreat to safe territory and wait until the path is open, and then return. There is another scenario: in the case of multi-storey buildings, they move to their neighbors, but this absolutely does not guarantee that they will not return to you again.

Ultrasonic

In this case, the device is designed to create ultrasound, which has an effect on the insect’s nervous system. He perceives such ultrasonic vibrations as danger and therefore leaves the territory. According to the manufacturers of such repellers, ultrasound operates in a certain range, which only affects insects, which is absolutely safe for people and animals.

Before purchasing a device, you should understand one important point. Speaking of a device that is ultra-modern, operates in a certain ultrasonic range, has a 100% effect on parasites and is absolutely safe for humans, it certainly cannot cost a few rubles. And often on our market there are models sold that are ineffective and have nothing to do with high-tech emitters. But at the same time, the fairly high price does not at all prove the quality of the devices.

When giving preference to ultrasonic devices, it is worth considering:

• Waves can only affect adults, the larvae remain untouched, so repeated procedures will be required;
• If the room is large enough, then you need to use several devices;
• To achieve maximum effect, it is recommended to additionally treat the room with chemicals.

Ultrasound against bedbugs. Feedback about use

Let's see what those who have already used such devices say. The vast majority of reviews about the use of ultrasonic bedbug repellers are positive. If you purchase a working device and operate it correctly, you can forget about the problem of bedbugs. Having looked at the reviews on the use of ultrasound against bedbugs, we can come to the conclusion that most repellers do not demonstrate the best results due to the following reasons:

• Converter output power. If it is too low, the efforts will have no effect. Although 38-44 kHz is sufficient for bedbugs, it is best to set the device to maximum.
• Direction and angle of sound capture. Ultrasound typically travels at an angle of 45 degrees from the source. If there is an obstacle in the way, the waves will not pass through it, but will flow around the object. This may reduce efficiency due to reduced coverage area.
• Number of bedbugs. If the parasite population is too large, one device may not be enough. Also of great importance is how far they are from the repeller. In most cases, judging by the reviews, one device is enough to get rid of bedbugs with ultrasound.
• The ability of bedbugs to adapt to ultrasound. In the first days of use, the device will affect everyone without exception, but over time, some of them may adapt to the irritant.

How to use the repeller

The instructions for use are simple and banal. Remove the device from the packaging, connect it to a power source or insert batteries. Set the required mode and leave it on until the bedbugs disappear. It is recommended to turn it off periodically to avoid damage. It is necessary to use the device for a long time. Only at the end of the month can you notice a visible result

In addition, you should pay attention to the radius of influence of the repeller

You may have to install several pieces in one room at once.

Instructions for use:

• remove from packaging;
• plug into the socket;
• set mode.

To prevent insects from becoming accustomed to constant ultrasound. Modes should be changed periodically.