Will ultrasound save from bedbugs: an invisible force in the fight against bloodsuckers

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Mankind has been waging a war with domestic bugs since time immemorial, inventing and inventing more and more new methods. A modern bedbug repeller is a fairly popular tool in the fight against these blood-sucking insects. It is easy to use, effective and inexpensive. In addition, the device allows you not to use toxic drugs that are dangerous for humans in the apartment.

Content

The main types of devices for repelling bedbugs
How does an ultrasonic bed bug repeller work?
Popular models of ultrasonic repellers
How to make a bedbug repeller with your own hands
- Typical scheme and principle of operation of the device

The main types of devices for repelling bedbugs

There are several varieties of pest repellers, the work of which is based on the use of certain physical and chemical effects. They can be ultrasonic, magnetic resonance, aromatic and combined.

Are repellents effective?

Of course Nonsense

Ultrasound devices

The device acts on insects using ultrasonic waves that are inaccessible to human hearing. Under their influence, the bugs tend to leave their habitat and move to a more favorable environment. Since ultrasound does not penetrate into the far corners and hard-to-reach places of the apartment and only affects adult bedbugs, it is necessary to re-use the device after a few days.

Ultrasonic waves are reflected from hard surfaces and absorbed by soft coatings, which must be taken into account when using. Since the gadget operates in a strictly defined area, with a strong infestation with insects and a large area of \uXNUMXb\uXNUMXbthe apartment, several repellers should be used simultaneously. In addition, it is necessary to treat the places of accumulation of parasites with insecticides.

Electromagnetic devices

Electromagnetic devices operate on the principle of a magnetic resonance emitter and are networked and autonomous. The oscillation frequency of the waves is adjusted in such a way as to have the most negative effect on the nervous system of insects, forcing them to leave the room.

The device emits electromagnetic waves that resonate with the vibrations of the central nervous system of parasites and gradually destroy their body. The bugs lose their orientation in space, feel the heat and begin to crawl around the apartment, trying to move away from the heat source. Moreover, the devices work not only on bedbugs, but also on other pests. Humans and pets also feel powerful low-frequency radiation.

The electromagnetic repeller does not affect the eggs of parasites, therefore, its periodic re-activation or constant operation for a month is required. Since the bugs usually do not travel long distances and remain on the border of the radiation zone of the device, after turning it off, they often return again or move to their neighbors.

Fragrant repellers (fumigators)

The fumigator acts on insects by means of a specific unpleasant odor for them, emanating from special solutions and aromatic plates. The effect is achieved by heating the substance with a spiral in the device. The active component enters the body of the bloodsucker, and the infected bug spreads the toxin throughout the colony.

Devices used against home bugs are divided into:

burning spirals;
aerosol means;
smoke bombs;
electric.

The last type of repeller, electric, has proven effectiveness and can work with different active elements, for example, plates, liquids, tablets. Smoke bombs are also good at controlling insects, but should not be used in rooms with people.

Aerosols are very popular among users, including when used in an electric fumigator. They are efficient, economical and affordable. Some types of fragrant repellers are not safe for humans and pets, so before using them, you must read the attached instructions and take the recommended measures.

Fumigators in most cases are a means of destroying parasites, but have a short-term effect. Therefore, it is advisable to use them in certain cases, for example, if you have to spend the night together with a high probability of getting a bug bite. As a rule, fragrant repellers are placed near the bed, plugged into an outlet or hung on a bed.

Combined

These electronic devices consist of two elements, one of which emits ultrasonic and the other electromagnetic waves. In this case, the radiation occurs alternately, so that the insects cannot get used to the operation of the device.

The double effect is even more detrimental to the parasites, creating impossible living conditions for them and quickly driving the bloodsuckers out of the house. Combined action repellers are considered the most effective in the fight against bedbugs.

How does an ultrasonic bed bug repeller work?

Ultrasonic devices from bed bloodsuckers are developed on the basis of mosquito repellers, but in the case of bedbugs, the device emits special signals that they perceive as vibrations and sounds of danger. The operation of the gadget disrupts the life cycle of insects. As a result, the parasites stop feeding, lose their ability to reproduce, and leave their uncomfortable habitat. The shape and frequency of the pulses are constantly changing, not allowing the bedbugs to develop an habituation effect.

The principle of influence on insects

The mechanism of operation of ultrasonic repellers is based on the emission of sounds of a certain frequency, which negatively affect the nervous system of insects, causing them stress and panic. To understand how waves act on small pests, you need to remember their structure. The body of arthropods is covered with a chitinous shell, acting as a skeleton. Its scales resonate under any mechanical impact, including under the influence of acoustic noise. The outgoing waves generate vibrations in the nerve cells of pests of such force that they are literally torn from the inside. Noises prevent parasites from orienting themselves in space and concentrating on the search for prey.

Instrument efficiency

Not all devices in this group are effective. Cheap devices equipped with an LED, an inexpensive sensor and a pulse generator circuit on 1-2 microcircuits or transistors are significantly inferior in efficiency to more expensive models. High-quality ultrasonic devices have a professional powerful sound sensor, a separate powerful power supply, a well-executed indication, one or more boards on microelements and mode switches. However, as numerous experiments have shown, with the help of electronic bedbug repellers alone, most likely, it will not be possible to completely get rid of them. The devices will need to be used on an ongoing basis, for preventive purposes, or in combination with other pest control methods. And one more thing - the gadget needs time. The first results of the work can be seen not immediately, but after 1-2 weeks of use, and the complete disappearance of bedbugs should be expected only after a month of regular use.

Ultrasound for people

In most cases, ultrasound does not pose a danger to humans, because it is simply not perceived by human hearing. However, some models of ultrasonic repellers with increased power can irritate the human nervous system, causing headaches, sleep disturbances, anxiety and other symptomatic conditions. Therefore, it is strongly not recommended to use them in the presence of people, and even more so in children's rooms, bedrooms.

Ultrasound for pets

Gadgets with low frequency radiation also adversely affect some pets: hamsters, guinea pigs, decorative rats, reptiles, insects, etc. For other species and larger animals, ultrasound is not so terrible.

Popular models of ultrasonic repellers

Today on the market there are different models of ultrasound devices recommended for use in residential and non-residential premises. Particularly popular are universal devices that are suitable for fighting not only bedbugs, but also other uninvited guests in the house: cockroaches, mosquitoes, ants, rodents, etc. Depending on the brand of the manufacturer, they may have different technical characteristics, design features, dimensions and cost.

Typhoon LS-500

9.6

Details

Tornado OTAR-2

9.4

Details

EcoSniper LS-919

9.7

Details

Hawk MT-04

9.5

Details

WK 0600 CIX Weitech

9.8

Details

Pest reject

9.3

Details

Typhoon LS-500

This repeller with an ultrasonic pressure level of 95 dB at a distance of 1 meter is able to cover an area of up to 90 square meters. m. It is easy to use and absolutely safe.

Expert rating:

9.6

The principle of operation of the device is based on the operation of a special microcircuit that constantly changes the frequency and duration of ultrasonic pulses, preventing pests from adapting to them. It is recommended to use several devices, one per room, as the sound does not pass through barriers such as doors, walls, thick curtains, etc.

pros

• low price;
• ease of use;
• inaudible to people.

Cons

• reviews are ambiguous;
• affects pets.

Tornado OTAR-2

The universal device is distinguished by reliability, ease of use and the presence of additional light exposure to parasites.

Expert rating:

9.4

The model is a fairly simple design with a central element - a speaker that operates at frequencies from 18 to 70 kHz. The best result is achieved when the repeller is installed at a height of 1-1,5 m from the floor level and in open space. Effective not only against bedbugs, but also against fleas, cockroaches, ants, spiders and other insects. Valid for areas up to 50 sq. m.

pros

• effective against various insects;
• spreads the action over a large area.

Cons

• price;
• mixed reviews.

EcoSniper LS-919

The device is also versatile and emits powerful high-frequency pulses of ultrasonic waves with a frequency of 21 to 25 kHz, expelling rodents and insects from the house.

Expert rating:

9.7

Works from a standard power supply on the area to 200 sq.m. m. The plastic case is resistant to mechanical and thermal stress. You can use the gadget in the temperature range from 0 to +80 degrees. When installing it, it should be taken into account that the greatest effect is achieved after 3-5 weeks of constant use of the device, and carpets, furniture and walls prevent the spread of ultrasound.

pros

• powerful device;
• resistant to temperature fluctuations;
• big square.

Cons

• not effective on carpets and under furniture.

Hawk MT-04

The repeller selectively acts on bedbugs and cockroaches, is effective on an area of up to 150 square meters. m. and is able to work in three modes: 1 - with a fixed frequency, 2 - with a fast frequency conversion, 3 - with a slow frequency conversion.

Expert rating:

9.5

The first mode is considered the most effective, but it has the potential to adapt insects to radiation. The second and third are distinguished by the absence of addictive parasites. Fixed frequency mode should be used for the first 7 days, followed by a fast frequency change mode for the next two weeks and a slow frequency change mode for the final week. The ultrasound generator automatically adjusts the frequency of the radiation, preventing pests from getting used to the signals of the device. You can use the device in any room with low humidity, without aggressive vapors in the air and away from heat sources.

pros

• fast effect;
• changing modes;
• suitable for any premises.

Cons

• afraid of moisture.

WK 0600 CIX Weitech

This device belongs to the professional class, while combining an affordable price and high quality.

Expert rating:

9.8

It is equipped with a high-strength body, a pair of sensors and can operate in 9 modes, which allows you to choose the most optimal level of exposure to parasites. During the first two weeks, it is recommended to turn on the device around the clock, then at night for prevention purposes. The gadget is able to serve for many years without causing problems to either people or pets.

pros

• proven effectiveness;
• long service life;
• universality of action on all pests.

Cons

• high price.

Pest reject

A compact device with a flat plastic case is designed to repel various insects and rodents and combines the action of ultrasound and magnetic resonance radiation generated by a special microprocessor.

Expert rating:

9.3

Despite its small size, it is quite powerful. Covers up to 100 sq. m., forming a force field that prevents pests and parasites from entering the house, and preventing their vital activity within the range of the device. Its main advantages are: long service life, low operating costs, ease of use combined with affordable cost and high efficiency.

pros

• high power of the device;
• affordable cost;
• efficiency of the combined appliance.

Cons

• not found.

How to make a bedbug repeller with your own hands

People who know how to work with a soldering iron and are at least a little familiar with basic knowledge in the field of radio electronics are quite capable of making such a device with their own hands. There are many schemes for insect repellers on the Internet, and components for the device can be purchased at a radio store.

Typical scheme and principle of operation of the device

Here is one of the typical gadget schemes. The KR1006VI1 microcircuit is used here as a time-setting element. It generates voltage pulses, the duration and frequency of which can be adjusted by changing the values of the components C1 and R2.

A change in the resistance of resistor R2 causes a frequency shift from 200 to 55000 Hz. The required adjustable frequency for insects, including bed bugs, is 20000 Hz. From the third output of the KR1006VI1 timer, an alternating voltage of the desired frequency enters the sensor, which is the speaker.

Using the variable resistor R3, the signal power is adjusted. If the KR1006VI1 controller is not available, the repeller can be designed on its closest imported analogues, for example, the NE555 chip.

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