Ultrasound against cockroaches: types and principles of operation of repellers, reviews

Ultrasound includes waves with a frequency of over 20 thousand hertz. Physically, a person does not hear them, but the body still perceives these vibrations and can react to them. Despite the range beyond their perception, people have long been using ultrasound in various areas of their lives. It is used in medical and biological research, industry, transportation and technical fields. It is used to create cleaning devices for jewelry, medical instruments and household items. The most famous “users” of ultrasound in nature are bats. It is he who helps them accurately navigate in the pitch darkness of the caves.

Dolphins, cetaceans, some birds, rodents and even mosquitoes communicate using ultrasound. Many animals do not use it for communication, but are able to hear it. This explains the effectiveness of ultrasonic pest repellers for home and garden pests. The higher the ability of parasites to perceive sound vibrations of a given range, the more effective such equipment is in combating them.

Such devices include an ultrasonic cockroach repeller, reviews of which are sometimes very contradictory. Why do some admire his work, while others consider it a waste of money? First of all, you need to understand that ultrasound does not kill, but only scares cockroaches, creates uncomfortable conditions for their life, which is why the insects leave the apartment after a while. Unfortunately, ultrasonic devices receive some complaints precisely because of a lack of understanding of the principle of their operation. The second problem is that cockroaches do not respond to the device at all. Most often this concerns recently hatched young animals.

The reason lies in the physiology of cockroaches. Long-term exposure is required for the expected effect. Just like humans, they do not hear these frequencies, but they are able to feel them. In marine terminology there is such a thing as “The Voice of the Sea”. This is infrasound, created by waves and wind in the range of up to 6-10 hertz, which can cause pain in the ears and a strong feeling of fear, even panic. Ultrasound affects cockroaches in much the same way. The third problem that can be encountered when using sound repellers is the impact on households and pets. Fortunately, this influence is selective, but still probable. Decorative rats or guinea pigs will inevitably feel it, cats and dogs - depending on your luck. In the case of people, exposure to ultrasonic radiation can manifest itself as side symptoms, which at first many do not even associate with repellers: headache, irritability, discomfort in the ears, weakness, poor sleep. The manifestation of these and other ailments is very individual and depends on the characteristics of the body. The human body may well not react to ultrasound at all. To avoid direct exposure, turn on the device when there is no one in the room - ultrasound waves do not pass through walls, wooden doors and glass, but are only reflected from them. However, for maximum effect, manufacturers advise keeping the devices turned on at all times.

If you have chosen an ultrasonic repeller, then a reasonable question arises: which one is better to choose?

How does it work?

An electric fumigator is an insect repellent. The effect of the device depends on who it is directed against. There are universal models of cockroach, mosquito, and spider repellers.

The operating principle is based on ultrasound generation. Ultrasound is acoustic waves with a frequency of more than 20 kHz, which are not perceived by the human ear. However, insects, including cockroaches, are sensitive to the high range of sound and perceive it painfully.

Ultrasonic waves act on the central nervous system of cockroaches, which causes a feeling of fear, fear, fatigue, and inability to move normally. Insects become less active, experience discomfort and try to move as far as possible from the source of the waves.

The effect of ultrasound on the human body is a topic of debate. It is officially believed that the frequency at which an electronic cockroach repeller operates is not sufficient to cause pathological changes. Therefore, it is allowed to use an electric fumigator in bedrooms and living rooms, but there are exceptions.

A similar principle of operation applies to gadgets whose operation is based on the creation of electromagnetic waves. Magnetic resonance affects the nervous system of cockroaches, which leads to a change in their behavior: insects move less, the reproduction rate decreases, and there is a need to move away from the source of the magnetic field.

Is ultrasound effective against cockroaches?

Fortunately for cockroaches and unfortunately for humans, these insects do not use ultrasonic signals to communicate with each other. They simply do not have the organs with which they could make these very sounds.

It would seem: since there are no such organs, then the device is useless.

However, there are certain subtleties in this issue. Of course, the consumer will not be able to decisively, once and for all and in a short time, get rid of cockroaches using ultrasound. And yet he can do something.

If you buy a device of sufficient power, then when cockroaches remain in the field of ultrasound for a long time, their nervous system will begin to malfunction.

Their behavior will also change: cockroaches will begin to crawl out during the day, into daylight, try to climb too high and fall from there, or become completely disoriented in space.

In addition, ultrasound will affect their ability to reproduce quickly, as if inhibiting it, in some cases completely depriving them of it.

As mentioned above, the listed characteristics are characteristic only of powerful types of repellers, but you cannot count on the complete destruction of cockroaches.

Even the most powerful ultrasonic cockroach traps only help reduce the number of insects in small numbers. This is probably due to the fact that pests feel uncomfortable near the signal source; they prefer not to reproduce in its presence.

Efficiency

In terms of convenience and quality, electrofumigators take the lead, ahead of chemical treatment of premises or calling a team of exterminators. The device connects to the network and immediately starts working.

Cockroach repeller does not give results right away. The period of continuous operation is 2-3 weeks, and only after that you can turn off the device. The action of ultrasound and magnetic waves is extended over time; this does not lead to immediate killing of insects.

Advice! If cockroaches appear again, the electric repeller can be turned on for a few more days. If they do not disappear at all, despite the device’s operation, then change it. The device is not selected correctly.

Types of devices

Depending on the method of action, all electrofumigators are divided into 3 types.

Ultrasonic

The operation of the electrical device is the effect of sound on the nervous system of cockroaches. Insects perceive the sound stream as a threat, running away from the source.

Magnetic resonance

The mechanism of action on cockroaches is the same as that of an ultrasonic device. The electromagnetic field causes discomfort in insects and forces them to flee from the apartment.

Electrofumigators and aquafumigators

Aquafumigators use chemicals to operate. The kit contains plates or powder that, when heated or sprayed, release chemicals. The chemical spreads throughout the entire volume of the room, gets into small cracks, and enters narrow spaces behind furniture and fittings. Aquafumigators can be connected to the network or work without electricity.

Electrofumigators are the same ultrasonic or magnetic resonance killers of cockroaches that are connected to the network. The electrical plug is either built into the body of the device or has a cord for remote connection.

Popular cockroach repellers

The list contains electric fumigators that have received recognition in the market, have been tried by thousands of people and have genuine reviews. Most of them are devices known in the production of these gadgets.

Eco sniper – AR 120

Magnetic resonance device manufactured in Hong Kong. Small in size. The neatly made body of white or black color in the form of a hemisphere impresses with its small dimensions and pleasant design. There is a light indicator on the front panel indicating the operation of the repeller.

The device is configured to generate low-strength magnetic waves. Eco sniper - AR 120 is not suitable for all rooms: in large numbers, cockroaches ignore the operation of the device, especially young, more resistant individuals. In addition, the case is vulnerable to mechanical damage and moisture.

Banzai LS927

Banzai LS927 is popular not only because of its nice design, but also due to its operation at high ultrasonic frequencies. Powerful impulses emitted by the device affect all types of cockroaches, including young cockroaches. Covering large areas, the device is well suited for processing warehouses, living rooms, restaurants, and hospital wards. It is not recommended to install a repeller in residential premises: the frequency of ultrasound is so high that the squeak of the device can be heard even by the human ear.

Ixus KY-6182

Low frequency ultrasonic waves are ineffective against cockroaches. The device operates precisely in this range, so regular use of the repeller rarely helps to completely get rid of insects. Even mosquitoes ignore the operation of the device.

Typhoon LS-500

Typhoon LS-500 was produced in Russia. A distinctive feature of the electric fumigator is an elongated plug for connecting to an outlet, which ensures mobility of the device. There are two indicators on the front panel that flash alternately when the device is plugged into a power outlet. Apparently this should repel cockroaches too.

The built-in microcontroller allows the device to periodically change the sound frequency so that cockroaches do not have time to get used to it.

Reviews about this repeller can hardly be called positive. People complain either about its partial work or about the lack of effect at all. A well-known brand is not always a quality product.

Pest Reject

American cockroach repeller “Pest Reject”, which was included in the list due to its low price. Interestingly, in the operating instructions, the manufacturer recommends using the device together with other repellents: tapes, aerosols. Buyers in reviews claim that cockroaches are more likely to die from those same aerosols than from the effects of ultrasound.

Zenet XJ-90

The device is similar to its counterparts: ultrasound generated by the device at a low frequency extends to small rooms. The unusual appearance of the case attracts potential buyers, but there are few verified reviews. Most of them are anti-advertising.

Pest repelling aid

The advantage of the “repeller” device is the small size of the box, so the repeller plugged into the outlet is not very noticeable. The minimum frequencies of ultrasound have little effect on cockroaches, and this reduces the effectiveness of cockroach control even in small rooms. The reviews are negative.

Tornado OT. 02

The Chinese manufacturer claims that high ultrasound frequencies are capable of destroying cockroaches regardless of their number in the room. The ease of use of the Tornado lies in the elongated wire that goes to the plug for connection to the socket, which gives mobility. However, the turned on repeller only works in small areas and, as a result, is not effective.

Air Comfort XJ-90

Another repeller model that has received more flattering reviews for its unusual design than for its effectiveness. The characteristics of the Air Comfort XJ-90 do not allow it to cover a room area larger than 40 m2, and buyers are not entirely satisfied with the performance of the device even in small bedrooms.

Reasons for the ineffectiveness of the device against cockroaches

The opinions of those who have used a modern cockroach device are significantly divided. Some claim that insects leave a person’s territory within 6-8 days after installing the unit, while other users insist that the device scares away “red-haired neighbors” if it is constantly running. And still others even talk about the uselessness of the devices. There are several reasons why opinions are divided:

• Incorrect choice. When choosing an electric cockroach repeller for an apartment or house, you need to take into account the range of action of the device, the area of ​​the protected area, the frequency of the acting wave and other physical and technical characteristics.
• Incorrect installation of the device. Ultrasound does not penetrate walls (the material is not important). Therefore, the cockroach repeller must be properly placed indoors. After all, ultrasound is also absorbed by upholstered furniture and reflected from hard furnishings. The diagram below shows how anti-cockroach devices distribute generated ultrasonic waves in an apartment.
• Buying a low-quality device. It is wiser to purchase units from trusted brands - Typhoon, Zenet, Ixus, Banzai, Pest Reject, EcoSniper, Clean House and some others. Modern ultrasonic cockroach traps are innovative devices that have already gained trust. The demand for equipment gives rise to a lot of unscrupulous manufacturers. Consumer reviews will help you buy a quality product.
• Incorrect device type selection. There are anti-cockroach devices that can be plugged into an outlet, and there are stand-alone, battery-powered devices. When purchasing the second option, it is important to monitor the capacity of the power supply. If it runs out, then there is no generation of ultrasound, which means the unit does not work.

If the instructions and recommendations of the equipment manufacturer are followed, the devices give high results at minimal cost. Therefore, when choosing an electronic remedy for cockroaches in an apartment, you can buy it in Moscow at a price of 970 rubles. up to 6,800 rubles, carefully compare the characteristics of the object being protected from insects with the capabilities of the device. If it is difficult to make an independent choice, consult a specialist in the store.

Other repellers

Tornado otar-1 is an ultrasonic device for exterminating cockroaches. A beautiful, original case with a long power cord will interest the buyer, but, according to reviews, the repeller is not effective.

Rexant 71-0009 creates an ultrasound that gets rid of cockroaches, spiders, rodents, snakes and bears. According to buyers, the device does not help in the fight against insects either on the site or in the apartment. designed to help with rodents, but users of the device did not see any effect.

How to choose

When purchasing a cockroach repeller, pay attention to the following points:

1. Price.
2. Action type.
3. Maximum processing area.
4. Reviews.

Price is a working criterion for choosing any purchase. Expensive versions of the device for repelling cockroaches work more efficiently, cover large areas, can help fight other insects, are safe, are produced under a well-known brand, and have an original assembly.

Cheap repellers are a trap for stingy buyers. Often these are fakes or low-quality options. Whether it is Russian, German or American production, the price tag should prompt the potential buyer to think about the effectiveness of a particular model.

If a repeller can create not only ultrasound, but also an electromagnetic field, this is a strong advantage. A double blow to insects increases the chances of removing them from the apartment within 2-3 weeks, as most manufacturers promise.

Additional features may be useful. It is good if the device has a mode for changing frequencies so that cockroaches cannot get used to the same ultrasound range. Some repellers may turn on LED lights periodically, which is considered a warning sign for cockroaches and will keep them away.

The treatment area is proportional to the power of the electric fumigator. If in the characteristics the covered volume is small, then the initial efficiency of the device is minimal.

Reviews are what you need to focus on when purchasing any equipment. Pay attention to negative reviews. The method of the effect of ultrasound on cockroaches, like the magnetic field, has not yet been fully proven, so it is worth turning to the opinions of other buyers. Did it help them? Which models do they find effective and which do not?

Advantages and disadvantages

It should be especially noted that very powerful devices can still cause harm to humans. Some individuals experienced a deterioration in well-being with prolonged use. These are headaches, worsening mood, drowsiness, and insomnia. Therefore, it is recommended to install the device only in those rooms where people are least likely to be present, and to strictly refrain from using the ultrasonic repeller in the bedroom, especially at night.

But some models of ultrasonic devices are capable of fighting several types of parasitic insects at once, for example, cockroaches and ants.

These include the following points:

• ease of use;
• long service life;
• if all necessary requirements are met, it is completely safe;
• economical energy consumption;
• fight against several types of insects at once;
• possibility of working next to other electrical appliances, because the ultrasonic waves emitted by this device do not affect household appliances;
• use either alone or in combination with chemicals.

How to properly install and use electronic repellers?

Choose a tall outlet. The ultrasonic waves emitted by the repeller cannot pass through obstacles such as furniture or walls. Therefore, it is better to install the device as high as possible. Ultrasound will flow from top to bottom without encountering obstacles.

: It is not recommended to use powerful devices in bedrooms, living rooms, or in the presence of pets. In all cases, high-frequency ultrasound affects the brain of humans and animals, which, with regular use, leads to nervousness, loss of normal sleep, and fatigue. The optimal solution in this situation is to use cockroach traps made from cans, bottles or tape. You can find detailed instructions on how to make a cockroach trap yourself in this article.

Advantages and disadvantages of ultrasonic devices

Among the positive aspects of using ultrasonic cockroach repellers are:

• ease of use - the devices do not require any specific maintenance and care;
• safety in relation to people (there is a conflicting opinion of experts);
• environmental friendliness - the devices do not emit harmful or toxic substances.

The disadvantages of ultrasonic cockroach repellers are:

• their unsafety in relation to pets - especially small rodents (hamsters, mice and rats) and birds;
• most often low efficiency;
• quite high price - especially for the so-called professional models.