Ultrasonic cockroach repellers: choosing and making your own

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.

Traps for cockroaches from manufacturers

They can be divided according to the type of action:

• With glue – safe, easy to use;
• With poison (insecticidal) - simple use, careful handling due to the presence of toxic chemicals;
• With the generation of ultrasonic waves, you should approach the choice with special care, carefully study the instructions and reviews on official websites;
• With the use of electricity - multiple uses, an outlet is required.

Glue traps

Such traps are the simplest and most convenient to use. When purchasing in a store, be sure to follow the instructions printed on the packaging. Usually, you need to assemble the structure, place the bait in the center, then wait for it to fill. As the structure is filled, it becomes clogged with dead insects, and the sticky adhesive layer dries out.

With poison (insecticidal) traps

The trap is produced in the form of a rectangular, round, oval box with several side holes. The manufacturer puts bait poison inside. On the inside there is double-sided tape, which allows you to attach the boxes not only horizontally, but also vertically, which is very convenient. The product is completely ready for use, just open the package and attach it in a place where insects accumulate. Cockroaches, eating bait poison, spread it, as a result, infecting their own kind. The number of pests decreases sharply.

Ease of use and readiness for use immediately after purchase make this type the most popular remedy against cockroaches.

Electric traps for cockroaches

The device is made in the form of a plastic box with bait inside. To operate, the device must be plugged into an outlet. Crawling into it, the cockroach is killed by an electrical discharge. The device comes with a brush for cleaning it.

There are a number of requirements for the location of the device: the room must be dry, the surface on which it will work must be made of non-combustible materials.

Before cleaning, the device must be de-energized.

With generation of ultrasonic waves (repellents)

The advantages and disadvantages of using traps are given in Table 1.

Table 1 – Advantages and disadvantages of application

Which type of trap is best for users to judge.

Rules for using a cockroach repeller

You can achieve a certain effectiveness of the repeller by adhering to the recommended rules for its use.

The ultrasonic cockroach repeller is placed at a height of 1–1.5 meters from the floor

User manual:

• use not one, but several devices at the same time. This approach will help get rid of insect colonies. Ideally, you should place an appliance in each room;
• The repeller should not be installed level with the floor. By raising the device to a height of one meter, you will significantly increase the area of ​​its impact;
• in a room cluttered with furniture and other interior items, the effectiveness of the ultrasonic repeller is reduced. The way out is to install two or more devices indoors;
• While using the gadget, you need to monitor your condition, the condition of other people, especially children, as well as the behavior of pets. If anyone becomes ill, you should stop using the repeller;
• If damage or malfunction is detected, the device should be repaired or replaced. Using a faulty device is unacceptable;
• use the repeller in combination with other methods of control and prevention. The main remedy, for example, may be a special insecticide;
• According to manufacturers of ultrasonic repellers, the effect of using the latter is not immediate. You should wait one to three weeks;
• The device must operate continuously and cannot be disconnected from the network. Otherwise, the cockroaches will most likely return.

How to properly install and use electronic repellers

The effectiveness of a repeller directly depends on the ability to place and use it correctly. To do this, there are some rules that must be followed:

1. It is advisable to use several repellers at the same time. This will certainly help get rid of a large number of parasites. One device is allowed in each room.
2. In order for the device to cover a larger area, it should be placed at a height of 1 m and only in a vertical position.
3. Due to obstacles in the room, the effectiveness of the ultrasonic repeller is reduced. The solution to this problem is to place multiple devices in the room.
4. After installing the device, be sure to monitor the condition of people nearby. If the action of the device negatively affects them, then it is better to refrain from using it and choose another method of combating parasites.
5. If the equipment has any damage or does not work correctly, it should be sent for repair. It is not permitted to use a damaged device.
6. Along with the repeller, it is also possible to use other methods to get rid of cockroaches.
7. Experts believe that ultrasound does not give instant results. Ideally, the repeller should work for about a month.
8. The device must not be disconnected from the network even for a short time, otherwise the cockroaches will return.
9. After installing the device, you need to monitor its temperature. Avoid overheating or excessive cooling.

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.

How to make cockroach traps

Now that you have become familiar with the types, you can choose a trap that suits your requirements.

Let's figure out how to create them. You just need to warn that if glue and poison traps are made quite simply, then you will have to work more thoroughly to create electrical and ultrasonic devices.

But today we will not touch on the last two types (you will understand why below).

Important. It is best to set a trap for cockroaches in the late afternoon, since insects are most often active during this period of time.

DIY glue trap for cockroaches

To create such a trap you will need a sheet of paper or a cardboard box (small).

In general, the box is more convenient to use, because, filled with still living cockroaches, you will have to pick it up and immediately throw it away.

The main component here will be double-sided tape (you can also use Rapter glue). The glue will not dry completely, thereby creating a sticky layer on the surface of the trap.

Cover the bottom of the box with tape and apply glue (choose only one of the two!). Inside the box, place bait (a piece of egg, leftovers from a holiday salad, or something else that is edible and has a very fragrant smell).

Place this box in the place where you noticed the mustachioed inhabitants.

Glass jar trap

Using a similar principle, it is easy to make another trap for cockroaches with your own hands - from a jar.

Take an ordinary glass jar and place an egg, fish or a piece of bread on the bottom. Cockroaches are very fond of spoiled food, which has an attractive aroma. Therefore, you can safely water the bait with kefir. They are also sweet, so you can use pieces of fruit generously sprinkled with sugar.

The outside of the jar must be wrapped in paper (this will make it easier for cockroaches to crawl inside), or a path must be made for them from thick cardboard, the upper part of which should be glued to the neck with superglue, and the lower part placed on the floor. Thus, the cockroaches will climb inside, as if on a ladder.

Coat the walls inside the jar with vegetable oil or Vaseline. The pests will climb into the jar for food, but will not be able to get out - it’s slippery. Leave it for two to three days, then replace it with a new one, since the oil on the surface will dry out and the trap will be of no use - unless you feed the cockroaches one more time.

There is another option, simpler and accessible to everyone: just use double-sided tape to cover the sinks in the house, the area near the trash can, all baseboards and other places where mustachioed friends like to crawl.

Important. Be careful, as small children and animals can also fall into this trap

Poison trap

Take a small box and make several holes, and put a poisonous substance in the center.

By the way, it is not necessary to buy poisonous bait; it can be prepared by adding 5 grams of boric acid (it is sold in powder form) to the egg yolk. At the same time, do not forget about the safety rules.

Electric cockroach trap

To make such a trap with your own hands, one box and wires will not be enough.

In this matter, you need to act carefully and be sure to have at least minimal knowledge in electrical engineering in order to comply with all the necessary safety measures and do everything correctly. Remember, due to an incorrectly manufactured device, not only pests, but even people living in the apartment can suffer

Remember, due to an incorrectly manufactured device, not only pests, but even people living in the apartment can suffer.

Mechanical trap made from a plastic bottle

This trap is the simplest and no less effective than the previous ones.

Take a regular large plastic bottle and cut off its top (that is, the very part where the bottle narrows).

Now turn this bottle over, then insert the cut part of the bottle into its bottom (you will get a so-called funnel). To ensure that the funnel holds well, secure it with regular tape.

When the funnel is secured, prepare a soap solution and pour a little of the prepared solution onto the very bottom of the plastic bottle.

Place your structure with the solution in the place where your unwanted pets (cockroaches) usually crawl. They will be attracted by the liquid, as a result they will begin to crawl inside this structure and drown there.

After a couple of days, throw away the dead cockroaches, prepare a new soap solution and put the bottle back in place if necessary.

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.

How it works

The rat and mouse repeller emits sounds at high frequencies that are not perceived by people, but rodents feel ultrasonic waves.

The purpose of the device is to create sound vibrations with frequencies and power that are perceived by rats and mice (frequencies from 30 to 70 kHz).

Most repellers emit only ultrasonic waves, but there are also those that also produce electromagnetic radiation.

Ultrasound devices can only act on the area of ​​a single room, since ultrasonic waves do not pass through walls or floors. Electromagnetic radiation penetrates walls and is blocked by metal plates and objects.

Ultrasound, reaching any surface, is reflected from it. From this we can conclude that one ultrasonic repeller for several rooms in the house will not be enough. There are a large number of such devices on sale, but they are not cheap, so it is more economical to assemble such a device yourself.

How to choose electronic repellents for cockroaches and insects?

Experts say that the correct choice of an anti-cockroach outlet and its proper placement are a guarantee of effectiveness. Let’s figure out what features of the device you need to pay double attention to:

• Serviced area.

The greater this characteristic, the more powerful the remedy for cockroaches in the outlet, the more electricity it consumes. But this does not mean that for a room of 20 m2, you need to purchase a unit designed to serve 100 m2 for faster results. A more powerful device against cockroaches will get rid of uninvited guests faster, but at the same time it will create significant noise loads in 20 m2. It will be problematic to be near him. Therefore, after 1-1.5 weeks, household members refuse the device and the insects return.

• Emitter type.

In rooms with an area of ​​up to 50-60 m2, an ultrasonic cockroach repellent with a directed emitter works more effectively. In spaces that are not cluttered with furniture and furnishings, scattering emitters are more effective.

• Maximum level of ultrasonic pressure.

The calculation is carried out per 1 m2. When buying a device for exterminating cockroaches in a house or apartment, you should make sure that this indicator is within 100 dB.

• Power consumption.

Household electronic protection against cockroaches does not have to be heavy-duty. A device consuming 3-6 Watt/hour is sufficient. Maximum power up to 10 W. If insect populations are small, you can also choose a battery-powered, autonomous ultrasonic device for cockroaches. But in this case, the operation of the device will have to be monitored. Because the equipment operates silently, it is often forgotten.

• External data.

An overly designed electrical insect repellent may not have the required efficiency, but its cost will be 30-70% higher. Therefore, experts recommend choosing the “golden mean”.

A purchased cockroach repeller should not be plugged into an outlet behind furniture. The emitter must be aimed at free space (there are no obstacles to the propagation of the sound wave). While the room is being processed, you can remove a certain amount of upholstered furniture, decorative elements, books, etc. from the room. It is worth remembering that the cockroach repeller generates a high-frequency sound wave that is absorbed by soft objects.

Issues of personal safety when operating insect repellent devices plugged into an outlet or powered by batteries will also be important. It must be remembered that the devices are not placed in wet areas. And also where domestic rodents and small birds live. If you strictly follow the rules and recommendations in the instructions for the ultrasonic device against cockroaches, its operation will be as effective and safe as possible.

Popular models

The market is full of different types of repellers. Practice shows that not all proposed models cope with their task. Highly effective repellers are more expensive and get rid of pests. And dubious, low-cost ones cannot even repel mosquitoes, let alone cockroaches. In this regard, it is worth following certain tips when choosing the right model:

1. If the residents of a house or apartment purchase an expensive and undoubtedly powerful device, then it is unsafe to stay at home during its operation (about 4 weeks). The best solution would be to move out of the living area.
2. There are devices whose action extends to no more than a square meter. Such devices are best used in rooms where people do not live, or on the street. It is allowed to place several repellers in one room, which operate at a distance of up to fifty square meters.
3. It is necessary to carefully select the type of food. If you go on a trip or are outdoors, then it is better to use a battery-powered repeller. At home, it is recommended to use the mains power method.
4. To avoid accidentally stumbling upon a fake, it is best to buy the device in specialized and trusted stores.
5. When purchasing, you should pay attention to the range of the repeller. The device is not able to influence parasites through obstacles (furniture, walls, carpets).

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The domestic market offers a wide selection of such devices, which differ in impact area, design, frequency, size and cost.

Currently popular:

1. "Tornado-200". This ultrasonic insect repeller operates from the mains, covering an area of ​​200 sq.m. Can be installed in cottages, garages, basements, warehouses. Operates over a wide temperature range. The radiation frequency varies between 18-70 kHz, changing every five minutes. The weight of the device is 150 grams.
2. "Tornado-400". Its effect extends up to 400 sq. m. Weight is 500 grams.
3. "Tornado-800". The device, identical to previous models, has a working area of ​​400 square meters. m.

https://www.youtube.com/watch{q}v=be3RId8rEfo

It is also worth highlighting such models as “Chiston”, “Tsunami”, “WK”, “Grad A-500”, “Spectrum”, “Typhoon”, “Thunder”, etc.

How to install a repeller?

The installation rules are quite simple:

1. 1. The device must be located in a dry place, reliably protected from moisture.
2. 2. When using a repeller with an independent power source, it must be installed with the back panel facing the wall.
3. 3. There should be no objects near the device that interfere with the propagation of ultrasound.

It is important to ensure that pets such as hamsters, guinea pigs, decorative rats, etc. are not exposed to high-frequency radiation.

Electrical circuit of a device for repelling rats and mice

The rat and mouse repeller is designed to repel rodents in urban environments and in the countryside. It can also be installed in a car to protect wiring. The operating principle of the model is based on the generation of ultrasonic waves with a frequency of about 23 kHz. Most rodents cannot tolerate sound of this frequency and experience anxiety and leave their habitats. Recommended housing BOX-G020. Dimensions of the printed circuit board are 53x28 mm.

Specifications:

• action area, 20 m2;
• supply voltage, 9 V;
• current consumption, 50 mA;
• operating frequency, 16…28 kHz.

When will the result appear?

The device will not get rid of unwanted guests instantly. On the contrary, in the first days the cockroaches will be more active and it may seem that there are more of them. It is this circumstance that explains the opinion of some users who claim that the device not only does not repel, but also attracts insects.

Adults will leave the apartment in about 2 weeks, but their eggs will remain, since neither ultrasound nor electromagnetic radiation destroys them. In about a week, new individuals will hatch. Having seen them, people often again come to the erroneous conclusion that the device is insufficiently effective. You should be patient, and after 4-6 weeks the annoying insects will completely disappear from the room.

Kinds

Devices that repel cockroaches are distinguished by their versatility, parameters, properties, operating principle and range.

Ultrasonic

The device does not kill, but repels cockroaches using ultrasound. The waves travel quite far. Only when the frequency is high do cockroaches leave their habitat. Such devices do not have a negative effect on the human body or pets.

Magnetic resonance

The devices emit low-frequency electromagnetic waves. This forces insects to change their place of residence. The safety of a repeller directly depends on its power. Devices emitting low frequencies are unproductive: the devices only repel pests without killing them, but do not harm people and animals. Industrial magnetic resonance repellers are considered more effective, but they have a bad effect on the human body.

Electrofumigators and aquafumigators

Electrofumigators against cockroaches look the same as their anti-mosquito counterparts. To operate the device, special tablets are used, which emit a specific odor when heated. The aroma spreads throughout the room and repels pests.

Aquafumigators are considered a fairly strong and universal remedy. The device is connected to an outlet and a substance is released along with the water that repels and poisons cockroaches. Compared to other devices, the devices are low cost, easy to use, and quite effective. Cons: the substance may have an unpleasant odor and be harmful to health.

Electrical devices – durable and practical

These are reusable devices that operate on mains power. They are an aesthetically designed house with bait inside, the smell of which attracts cockroaches. Does not contain insecticides, so the trap is safe.

The device works on an interesting principle. The current kills cockroaches and disinfects dead insects. Under the influence of electricity, pheromones are released from the corpses, which attract other cockroaches - a chain reaction begins.

Consumers confirm the reliable operation of electric traps. People are happy with the instant death of cockroaches and the fact that the device is used for a long time. The device destroys colonies of cockroaches; no additional insecticides are required. The main thing is to buy the original and not a fake, then you won’t have to use additional chemicals.

The device operates under voltage and poses some danger to humans. When installing and operating, adhere to the following rules:

• used in dry indoor areas;
• placed on a non-flammable surface;
• periodically check the insulation;
• Before touching, the device is turned off.

Electric traps are not cheap, but they work for many years. The kit includes a brush for cleaning the device from corpses. The bait is periodically renewed, the regularity is determined by the number of insects.

Rating of the 12 best repellers

There is high competition among electronic repellers on the market. Some people swear that ultrasonic repellers have worked wonders on their bug problems, while others swear just as vehemently that they did nothing.

Since ultrasonic techniques rely on the propagation of ultrasonic sound waves, we suspect a lot of this has to do with the placement of the devices, interference from upholstered furniture (which absorbs sound), and other physical obstacles.

Russian repeller "GRAD A-1000 PRO"

A universal device that has 4 operating modes (against cockroaches, mosquitoes, low power and high). The range is up to 1000 square meters. The repeller can be used in different rooms (both residential and industrial). The desired result appears within 2 weeks. The device does not overheat.

REXANT 71-0018

This device is recommended by the manufacturer for use in two- to three-room apartments. Powered by mains. Radius of action 60 sq.m. Non-toxic.

Pest Repeller

Small and powerful, each one will take up an entire room in the house.

Since they plug into a standard wall outlet, there is no need to change batteries or worry about them. It works around the clock to remove cockroaches from your home. There are no dangerous poisons or awkward traps around.

In fact, most people won't even know who they are when they see them, they'll just think they're a night light.

Pest Reject

An American-made device with a range of up to 200 meters. This is a modern and quite effective repeller with a wide spectrum of action.

Therefore, using this device you can get rid of not only cockroaches, but also other insects and rodents. This drug is best used in combination with insecticides, as well as with various traps.

Ultrasound duo

This device can easily be considered one of the modern, most advanced ultrasonic repellers. The device is capable of generating a wide band of ultrasonic frequencies that affect the nervous system and hearing organs of various insects, including cockroaches and rodents. The negative effect of ultrasound creates uncomfortable conditions for their life activities so that they are forced to look for more comfortable conditions.

Ultrasonic repellers are safe (at least that’s what the manufacturers claim) for humans, as well as some pets. In addition, the operation of the device does not negatively affect the operation of other electrical appliances and telecommunications.

This device is distinguished by the presence of 3 operating modes, which allows you to change the frequency of ultrasound generation in a wide range (from 25 to 65 kHz). The device is capable of protecting a room of up to 550 square meters from cockroaches. In a few days there will be no trace left of the “uninvited guests”.

Unfortunately, the repeller only affects adults and does not have a negative effect on egg laying. The greatest effect can be obtained in combination with chemical control agents.

31st century UP-118

The device is absolutely safe for humans. Pests are leaving their hiding places.

The advantage is the high frequency of the device (30-65 thousand Hz). The sound pressure level reaches 140 dB. It is also convenient that there is a power adapter available. The ultrasonic domestic cockroach repeller covers large areas (230 sq.m.). In addition to cockroaches, you will also get rid of moths, fleas and other parasites.

Tornado OT.02

According to the manufacturer's plan, the device is equipped, because it is known that they are no less afraid of sunlight than ultrasound. The ultrasonic domestic cockroach repeller weighs very little, has small dimensions, temperature control (from -30 to +80 degrees), but, unfortunately, it covers an area of ​​only 50 square meters.

LS-968

The model has a stylish and functional design, in addition, it can be placed on the wall and ceiling. The frequency of ultrasonic waves reaches 27 thousand Hz, sound pressure is 130 dB. Adjusting the temperature of the ultrasonic cockroach repeller from -10 to +50 degrees Celsius

WK-3523

If you want to have a premium device, then this model is definitely worth paying attention to. The kit includes three devices at once. In addition to ergonomic power consumption, the Ultrasonic Pet Cockroach Repeller is also safe for people and pets. The device has a compact size and low weight (0.11 kg); temperature control from -10 to +40 degrees Celsius. Ultrasonic pressure does not exceed 130 dB; Coverage up to 45 sq.m.

Tornado-800

The ultrasonic repeller of domestic cockroaches, rodents and insects is intended for residential and industrial premises with a coverage of up to 800 sq.m. Taking up little space, it will scare away all pests due to the high frequency and pressure of ultrasonic waves. It is frost-resistant. Distributes ultrasonic waves up to 800 sq.m; ultrasonic pressure is 102 dB. Temperature regulator from -40 to +80 degrees.

AR-120

Effectively operates on an area of ​​up to 50 square meters. Depending on the number of pests, the device can be turned on either for several weeks or for several months. The device costs about 2 thousand rubles, which is quite expensive for this class of device.

It is important to know! Ultrasonic and electromagnetic repellers are designed to last a long time, so they must work for a long time until the insects disappear completely.

Typhoon LS-500

The ultrasonic domestic cockroach repeller “TYPHOON LS 500” has been in production for more than 10 years. During this time, the device has been constantly improved, and this product is the latest development. In the manufacture of the repeller, high-quality components of Russian and foreign production are used. Each device undergoes a cycle of tests and monitoring of compliance with the stated technical characteristics.

The first signs of insect disappearance are observed after 1-2 weeks of continuous work. Complete disappearance is observed after 3-4 weeks of continuous operation of the device, after which it can be turned on in a cyclic mode: for example, at night, when insect activity increases.

WK-600

The Belgian ultrasonic repeller Weitech WK-600 is a powerful device with nine operating modes for the most effective fight against specific types of rodents and insects, including cockroaches. Provides impact on a large area up to 325 square meters. m. A special algorithm for generating non-repeating signals makes it impossible for pests to get used to the effects. Equipped with two speakers and a regulator of the intensity of emitted ultrasound. In many modes it operates absolutely silently, so it does not interfere with the work and rest of people around you.

Since the Weitech WK-600 can be configured for mixed sonic-ultrasonic and pure ultrasonic radiation, it can be used both at home and in industrial environments. 9 operating modes allow you to select the most optimal frequency and radiation power to repel specific pests. There is a silent operating mode - you can turn off the audio frequency and use exclusively ultrasonic signals (over 20 kHz).

Will save you from almost all pests! It affects not only rodents (mice, rats), but also insects: cockroaches, fleas, moths, spiders, ants, etc. But it is also expensive, about a hundred euros.

Riddex Repeller

The device has an affordable price, so it is accessible to all segments of the population. Its power allows you to protect a room of up to 200 square meters. The device has a settings regulator, which allows it to be used in various conditions.

Banzai LS927

The Thai ultrasonic domestic cockroach repeller has earned the trust and recognition of many people for its good results. The only drawback of the repeller is that it is not recommended to be placed near pets or near the bed. The sound produced by the device is quite loud and unpleasant.

EcoSniper

The manufacturing country of Hong Kong presents a magnetic resonance cockroach repeller. The device generates low-frequency waves that have a detrimental effect on the nervous system of cockroaches. As a result of this influence, insects leave the problem area. Many users point out the lack of efficiency of the device.

The device has analogues:

• Ixus KY-6182 is a budget option with similar characteristics. Sold in online stores.
• Zenet XI-90.
• Air Comfort XI-90.

GRR09

This device generates ultrasonic waves in 3 modes and protects rooms with an area of ​​up to 40 square meters.

Using the switch, the necessary operating modes are selected to ensure the fight against both insects and rodents.

Zenet XJ-90

The coverage area of ​​this ultrasonic cockroach repeller is 30-40 square meters. The manufacturer offers stylish design and long service life. However, it is important to keep in mind that this device is a modification of the Air Comfort XJ-90, which has already been poorly effective against cockroaches and has earned a bad reputation.

hail

This device from a domestic manufacturer is designed to combat cockroaches, rodents and other insects. The principle of operation is the same as that of other models. However, the device differs in some features. For example:

• The device is reliable.
• And effective.
• Has a long service life.
• Easy to use.

The Grad device is in high demand due to the fact that:

• The device protects a large area, up to 550 square meters.
• Has silent operation.
• Differs in compact sizes.
• It runs on either batteries or a car battery.

Magnetic resonance repeller AR120

The device with the strange name AR120 is declared by the manufacturer as magnetic resonance. This means it is capable of creating low frequency waves, and it is these waves that will torment the cockroaches, create discomfort for them, surviving the insects from your home once and for all.

It is inaudible to the human ear, does not pose any danger to animals, and begins to act almost immediately after switching on. According to the manufacturer, the device will leave absolutely no chance for the small, mustachioed inhabitants, but buyers have a slightly different opinion.

Judging by the reviews, the device really gets rid of cockroaches, but only in the room where it is turned on. Apparently, it's all about the small radius of action.

Electrical circuit of a dog repeller

• A simple version of the dog repeller (Fig. 1) is assembled on one digital chip (DD1) and five transistors (VT1~VT5). An infrasonic generator is made using logic elements DD1.1, DD1.2, resistors R1, R2 and capacitors Cl, C2. It is a symmetrical multivibrator that produces rectangular pulses with a frequency of 1.5 Hz.
• The second symmetrical multivibrator, built on elements DD1.3, DD1.4, resistors R6, R7 and capacitors C5, C6, is an ultrasonic generator, the frequency of rectangular pulses of which is 20 kHz and periodically (every 0.66 sec) increases by 4 times. A smooth periodic “rise” of the ultrasonic frequency upward is performed by a part of the circuit containing resistors R3-R5, transistor VT1, capacitor SZ, diodes VD1.VD2.
• The rectangular ultrasonic waves created at output pins 10 and 11 of the DD1 microcircuit have low power. They are amplified in power by a push-pull bridge amplifier made using VT2-VT5 transistors. The emitter load of this amplifier is a piezoceramic emitter BF1.
• Ultrasonic vibrations (modulated by infrasonic ones) are excited in it after pressing the SB1 button, which performs the “on” function.
• The power circuit of the DD1 microcircuit is protected from accidental “reversal of polarity” of the GB1 battery by the VD3 diode, and filter capacitors C4 and C7 provide transmission of high-frequency and low-frequency oscillations through the power circuit.
• When you use the ACT-10 car piezo siren instead of the SP-1 piezo emitter, the range of the repeller will increase significantly.
• The GB1 battery can be assembled from six to ten galvanic cells (316), D-0.25 batteries, or you can use a ready-made 12-volt battery L1028 or a 9-volt “Krona” or “Corundum”.
• The K561LA7 microcircuit can be replaced with 564LA7, K176LA7, K1561LA7.
• Diodes VD1-VD3 - any small-sized silicon, transistor VT1 - any low-power silicon with a base current gain of at least 30.
• Transistors VT2, VT4 and VT3, VT5 can be replaced with any of the KT3102 and KT3107 series.

When assembling a dog repeller, you can not use microcircuits at all, then the number of transistors will increase to nine. Fig. 2 shows a diagram of the second version of the repeller, more precisely, part of it (the rest is according to Fig. 1), in which the infrasonic generator consists of transistors VT6, VT7, capacitors C1, C2 and resistors R1-R4, and the ultrasonic generator consists of transistors VT8 , VT9, capacitors C4, C5 and resistors R7-R10. The ultrasonic frequency “stealing” circuit has resistors R5, R6, capacitor SZ, transistor VT1 and diodes VDI, VD2.

So that when setting up, which mainly consists of selecting the resistance of resistors R3 (Fig. 1) or R5 (Fig. 2), you can determine its operation by ear, for a while two capacitors with a capacity of at least 6800 are connected by soldering in parallel with capacitors C4 and C5 pf each.

Publ.: 2013-06-13

Change: 2017-08-31

• 2590 rub.
  The ultrasonic rodent repeller SD-002 has a protection area of ​​up to 400 sq. m. It is used against rats and mice, and repels cockroaches, ants and other insects. Power supply: mains.
• 1790 rub.
  3 types of waves. The device is ideal for use in small residential and non-residential premises, operates on a 220V network and is effective against rodents and small crawling insects.
• 2100 rub.
  Tornado OG.08-400 is designed to protect premises from rodents. For installation in granaries, warehouses, household and industrial premises. Effective area 400 sq. m., power supply: 220 V network.
• 3150 rub.
  Tornado OG.08-800 is designed to protect premises from pests. Repeller of rodents, rats, mice for tunnels, underground communications and other elongated objects. Effective area 800 sq. m, power supply: 220 V network.
• 1500 rub.
  For installation in all types of residential and non-residential premises. It has a wide angle of ultrasound radiation and two operating modes (sound and silent). Effective area 400 sq. m.
• 1300 rub.
  For installation on an area up to 400 sq. m. For premises where people are constantly present, as well as for non-residential objects with temperatures ranging from -15 to +45 degrees. Silent.
• 2000 rub.

The active phase of mosquito life begins in mid-spring. The first insects wake up in the ventilation and sewer rooms of apartment buildings and begin to literally terrorize the residents. Moreover, it is not so much the painless bite that is annoying, but the unpleasant sound that the mosquito makes as it moves, which is unpleasant to the ear. Therefore, many repellents for these insects have been invented.

The bite of even the most seemingly harmless mosquito can cause unpleasant consequences. A mosquito bite is not only an obsessive and difficult-to-stop itch. During intensive scratching of the affected area, there is a possibility of introducing various types of infections into the wound. And sometimes, these insects are carriers of a terrible disease - malaria.

It is extremely necessary to combat mosquitoes and other blood-sucking insects. The mosquito saliva that it injects into human skin can contain not only dangerous infections, the female insect is capable of laying eggs in human skin. Therefore, the use of reliable protective agents in the fight against mosquitoes will be the key to your health and comfortable existence.

These insects primarily choose the thin skin of children and the too sweaty skin of adults as their victims. Mosquitoes are especially active when the ambient temperature is 16 degrees Celsius, but they are powerless at 28 degrees Celsius. In a room with dry air, mosquitoes lose moisture and, accordingly, their activity.

Nowadays, people have learned to deal with squeaky pests; this is also evidenced by the presence of a variety of mosquito protection products on store shelves. According to their type, such funds can be divided into the following groups:

1. Fumigants. Liquid, gaseous or solid chemicals that kill insects by penetrating their respiratory tract. Such products are strong insecticides for insects and are practically non-toxic to people and animals. Some species can partially cause stomach upset in humans and nervous system disorders.

Fumigants include compounds such as sulfur dioxide and sulfur oxide, naphthalene, ethylene oxide, and preparations containing hydrocyanic acid. In stores, fumigants are sold in the form of smoking spirals and insecticide-impregnated plates. Such plates are set on fire and the room is treated with smoke. Smoke with a pungent odor is not to the liking of insects, as it has a detrimental effect on them. Experts recommend using fumigants indoors.

1. Repellents are deterrents that are available in the form of creams, wipes, lotions and gels.

Based on the type of effect, repellents are classified into the following groups:

• capable of changing the smell of human skin and thus confusing the orientation of insects;
• repels mosquitoes and prevents them from landing on the skin.

These means can be used to protect both an entire group of people and one person. Outside, the surrounding bushes are being processed. If it is a tent, then the entrance holes are processed.

There is also special protective clothing for people who often or constantly have to stay in the mosquito zone. Such underwear is made of very dense material, which is extremely difficult for a mosquito to bite through.

Certain types of repellents are intended for application to hair, clothing, hands and face, avoiding the area around the eyes and getting into the mouth. It should be remembered that repellents cause a burning sensation on freshly shaved skin. It is worth noting that mosquito repellent creams protect more effectively than fumigants that smoke plates. Irrigation of the skin is carried out with aerosols that contain repellents. Such products are ineffective in the fight against fleas, flies, bedbugs, ants and moths. Repellents are recommended for use on hikes, picnics and walks.

1. Folk remedies. It is not necessary to use chemicals to combat mosquitoes; you can resort to using traditional methods. There is a set of certain plants whose smell cannot be tolerated by mosquitoes and other insects:

• tomato seedlings. Mosquitoes are repelled by this smell;
• cloves, anise, eucalyptus;
• cedar oil, valerian, and tobacco smoke also repel insects from the house;
• If you spray a small amount of carbolic acid in your apartment, then for a long time you can forget about the presence of intrusive mosquitoes in your apartment.

1. Ultrasonic repellers. An effective remedy in the fight against ubiquitous insects.

Mosquitoes are repelled thanks to the low-frequency sound (up to 7 KHz) that the device produces. This sound imitates the buzzing of male mosquitoes and scares away the females, who directly drink the blood. The frequency of the device can be adjusted individually. The electronic mosquito repeller has a short range of action, and therefore it is better to use it in individual cases, for example, by attaching an ultrasonic keychain to clothing. With such a device, you can walk outside in the evening, relax in a summer gazebo and not be afraid that your leisure time can be ruined by blood-sucking insects. When choosing an ultrasonic mosquito repeller on the market, you should pay attention to its range of action and purpose.

Why does ultrasound not work against cockroaches?

The concept of repelling insects using ultrasound originally came about when scientists noticed that mosquitoes use it to communicate. Certain frequencies had a deterrent effect on flying bloodsuckers because they signaled the approach of predators. Manufacturers quickly began assembling such ultrasonic devices and they flooded the market. But what is true for mosquitoes does not work against cockroaches and bedbugs.

Indoor insects do not use ultrasound to communicate and warn of danger. The squeak has no effect on them. The effectiveness of high-power industrial devices is explained by the high intensity of the sound produced. It is so powerful that it irritates everyone, including humans.

Thus, we can conclude that the effectiveness of ultrasonic and electromagnetic devices is greatly overestimated. They can only affect cockroaches with high power. However, powerful devices also affect humans and are poorly applicable in residential areas. It is not safe for a person to be near them for a long time. Therefore, powerful ultrasonic units are used mainly in production and warehouses.

Electronic models and their varieties

Such traps operate from the electrical network. Insects follow the scent of the bait and receive a lethal discharge of electricity. The device should be periodically cleaned of dead pests.

An electronic trap for cockroaches has an important advantage - it is durable, you only need to update the bait occasionally. There are several types of devices depending on the principle of operation: electrical, ultrasonic and electromagnetic

Electrical

They work on the principle of the previously listed types of traps: there is bait in a small box, only instead of poison, electric current is used. Climbing inside, the cockroaches die from a fatal electric shock. This device does not contain insecticides, but since the device is powered, it is recommended to keep it away from children. To avoid short circuits, it is necessary to protect the device from water. It has a high cost.

Ultrasonic

Such devices do not destroy cockroaches, but repel them. Insects are afraid of ultrasonic signals, and if such a trap is working in the room, they will not run in there. An electrical network is required for operation.

Electromagnetic

They also act on the principle of scaring away. They create an electromagnetic field in which arthropods cannot be present. Very easy to use - just plug the trap into a power outlet. The operating distance depends on the power of the emitter.

So is it worth buying a repeller?

It's up to you to decide. As you can see, ultrasound is not a panacea; rather, it is an addition to such usual means for humans as poisoned baits and traps.

If you are still planning to buy this device to protect your home from cockroaches, then purchase it from reputable stores, request and study all the certificates, documents, ask whether there is a guarantee for the effectiveness of the device, what is its service life.

And don’t buy too cheap models, because they most likely will have absolutely no effect on the cockroaches that are bothering you.

DIY ultrasonic cockroach repeller

To create a repeller with your own hands, you will need a special scheme; this can only be done if you have certain knowledge and skills.

Required items:

• Toggle switch and diode d;
• capacitors C1, C2;
• UZ element for sound reproduction (piezo emitter);
• transistors T1, T2;
• variable resistors and R1, R2, R3, R4, R5.

The function of resistors is to limit the current and regulate the voltage in the network; the variable resistor is designed to adjust the ultrasonic frequency at the output.

The piezo emitter can be anything from any manufacturer, as well as the toggle switch that is used to turn the device on and off.

Capacitors and transistors provide the creation of a frequency circuit together with resistors; the diode is designed to protect the device from improper activation.

To create a board, blanks for radio amateurs are required; a repeller of this type should be able to regulate the power and frequency of the waves, which will allow the device to be used to repel different types of pests.

For these purposes , a variable resistor is used, in parallel to which a frequency meter is connected; the power depends on the power source (power range 1.5-12 V).

If you make it yourself, such a device will cost only 400 rubles, and the repeller can be used to combat different types of insects; for this, it is enough to switch the frequency using a resistor. diagram is shown in the picture.

Possible applications

DIY mosquito repeller

A device for repelling mosquitoes works on the principle of how insects perceive various sounds. When assembling ultrasonic models, special frequency microcircuits are used. It is inaudible to humans, but extremely unpleasant for mosquitoes.

Repellers imitate sounds that are unpleasant for mosquitoes, which are similar to those of bats, male mosquitoes, and dragonflies. It is precisely such vibrations that females try to avoid, which pose the greatest danger to humans.

There are so many designs for ultrasonic repellers that they can be effectively used both outdoors and indoors. The type of power source of the mosquito repellent device plays a key role in this case.

There are stationary and portable versions of mosquito repellers. For lovers of outdoor activities and travel, small models are suitable, and for home use, you can use the schemes of larger models. Let's look at how to properly make an ultrasonic mosquito repeller.

A few words about alternative devices

Among the traps for killing cockroaches, the most popular are:

1. 1. Adhesive: the simplest, cheapest, but ineffective with a high degree of contamination. In addition, they can pose a certain danger to small children and pets. Available in the form of cardboard houses with an adhesive floor.
2. 2. Insecticidal house traps: their advantages include safety and ease of use. Disadvantage: short validity period. A poisonous “treat” awaits the cockroach inside the trap. Having eaten it, the insect does not die immediately, but manages to reach its relatives, who will be poisoned by its toxic remains.
3. 3. Electrical traps. These are quite simple devices, which are a plastic or metal container with a conductive bottom. Attracted by the smell of the bait, insects climb into the trap through a small hole in the body and, closing the contacts with their bodies, die under the influence of current.

There are many ways to fight cockroaches, the choice is up to the buyer!

Homemade traps that you can make yourself

To make cockroach traps yourself, just familiarize yourself with several options and choose the simplest one for yourself.

How to catch cockroaches in a jar

The simplest of the homemade options is a jar trap. To make it you will need:

• glass liter or half liter jar;
• cardboard or thick paper;
• glue;
• brush;
• scissors;
• sunflower oil;
• bait.

1. Cut a paper strip 1.5–2 cm wide.
2. Coat the jar with glue and wrap it with paper tape. It will allow insects to easily penetrate inside without sliding off the glass walls.
3. If you don't want to bother with glue, cut a long strip of cardboard. Fold one edge as shown in the picture and hang it over the neck of the jar. Using such an improvised lift, insects will be able to get to the delicacy lying at the bottom.
4. Lubricate the inside of the jar with sunflower oil; it will prevent cockroaches from getting out.

Use smoked sausage, meat trimmings, fruits, vegetables, sweets or kefir as bait.

The best place to install such a trap is the kitchen.

Every morning, throw away the contents of the jar along with the caught cockroaches. After replacing the bait, you can safely install it in its original place.

How a homemade structure made from a jar for catching cockroaches works - video

Option two: trap - bottle

A trap has a similar principle of operation - a bottle that takes up less space. To make it you will need:

• empty bottle;
• paper;
• glue;
• brush;
• sunflower oil;
• bait: beer, wine, juice or kefir.

1. Glue a strip of paper 1.5–2 cm thick cut out of paper onto the outer surface of the bottle.
2. Lubricate the inside of the neck with sunflower oil.
3. Pour bait into the bottom of the bottle and place it near the place of greatest concentration of cockroaches.
4. Instead of paper, you can wrap the container with a rag, thick threads or rope to allow insects to easily penetrate inside.

This trap should be cleaned regularly, after which it can be reused with fresh bait.

Please note: a large number of live insects accumulate inside jar or bottle traps.

How to catch cockroaches with glue

To make a glue trap you will need:

• cardboard;
• double sided tape;
• bait.

Overnight, many insects will stick to the sticky surface. As soon as their number reaches the maximum, the trap will have to be thrown away and a new one made.

Poisonous homemade boric acid trap

The main component of this product is. A poison based on it leads to the death of the insect, paralyzing its nervous system.

When making bait, it is necessary to make it as attractive as possible to cockroaches using additional components.

1. Boil chicken eggs and remove the yolks. Crush them with a fork and mix with boron powder. Roll small balls from the resulting mass and place them in places where insects accumulate.
2. Mix boric acid powder with powdered sugar in a 1:1 ratio, then add a little vanillin for flavor. Place the mixture in lids or saucers, placing them around the kitchen.

The disadvantage of these products is that the effect is neutralized by water.

If cockroaches that have tasted the poisonous bait manage to drink even a small amount of liquid, the expected results will not occur. Therefore, make sure all kitchen surfaces are dry in advance.

Please note: poisonous traps based on boric acid mixed with food must be placed out of the reach of children or pets.

You can prepare bait that is dangerous for cockroaches using gypsum or alabaster mixed with flour or powdered sugar. Once inside the body, they freeze, leading to the death of the insect.