On the streets of both big cities and the smallest villages, you can find packs of stray dogs. This happens because people are careless about their four-legged friends, special services are inactive, shelters are overcrowded. But the fact remains that whole flocks of hungry animals can cause serious harm to life and health. Then how do you protect yourself?

Varieties of scarers

Technology does not stand still. Various devices and devices are replacing the materials at hand. In order to avoid a collision with an angry animal, there are special dog repellents, which are of different types:

  • Ultrasonic;
  • Electronic;
  • Gas;
  • Stationary.

Ultrasonic scarers are the most effective today, as they emit a strong ultrasonic signal, which is completely safe for humans. But animal hearing is different from human hearing, so a properly selected frequency can scare off different animals.

Electrical devices are represented by stun guns, which, among other things, also emit an unpleasant sound for dogs, as well as the smell of ozone.

Ultrasonic Dog Repeller

Gas cartridges can be used at a distance of one to one and a half meters from animals. But it is important to choose the right gas here, because certain substances do not have any effect on dogs.

Stationary scarers work on the principle of ultrasound, which can protect the home area from being visited by various animals. By sending them to a certain place, it immediately becomes undesirable for dogs to visit. Another plus is that their frequency is constantly changing, which avoids addiction.

Note! Another small variation is the ultrasonic whistle. However, users note its low efficiency.

How the ultrasonic dog repeller works

At the heart of any ultrasound device is work based on special noise waves, which is able to catch the ear of an animal. While human perception is limited to sounds up to 20 kHz, dogs are able to perceive sounds up to 40 kHz. Basically, ultrasonic devices emit sound with a frequency of 116 decibels.

The included device works at a distance of up to 30 meters. The greatest efficiency is achieved with a short distance. Such a mechanism is capable of causing animals to flee or to keep at a distance of 10 meters.

Do-it-yourself powerful dog repeller - scheme

How to choose the right device?

When choosing an ultrasound device, you need to be guided by several parameters. First of all, depending on the type of mechanism, you need to pay attention to the frequency.

Again, a dog's hearing is stronger than a human's, so a good repeller should work at a frequency of 20 to 30 kHz. Average rate of quality fixtures from 24.3 kHz. Naturally, stationary devices are much more powerful, because they create a sound load of more than a hundred dB. Compact versions are much weaker, but individual instances can produce sound at up to 250 dB.

How the ultrasonic dog repeller works

It is important that the pocket repeller works at a range of 10 meters or more. This will help avoid the approach of animals. Aids that start working at a shorter distance are best for children.

Range selection for stationary models should be based on the size of the area to be protected. So, there are options that cover the territory of a small courtyard, and there are those that work on several hundred square meters.

Note! As a rule, the battery in the repeller is enough for 1000 uses (depending on the model). Krona, AA or AAA batteries are used as batteries. Stationary models operate on mains supply (220 V) or solar panels.

Of course, there are some additional features worth paying attention to. For example, some devices may be equipped with a strong audible siren, which creates additional security and can also attract the attention of others in the event of an attack.

The most effective additional feature is the flash light, which blinds the dog that is close by.

Mole Repeller

Most popular models

The market offers a wide selection of this kind of devices from different manufacturers. Which one is the best to choose?

One of these devices is the Cobra, which was made in Smolensk. This is a portable unit emitter that comes in a plastic case. It is also equipped with an LED flashlight. According to the manufacturer's description, the power of the device is 120 dB at a distance of 0.5 meters, the frequency is from 22 to 25 kHz. According to reviews, the device is weak.

Pros:

  • Really able to scare away dogs.
  • The emitter is framed by a metal ring that is capable of concentrating the direction of energy.
Do-it-yourself mole scarer

Minuses:

  • Unreliability and water permeability of the case.
  • The LED works continuously, which reduces the operating time, and also does not provide any additional benefit during the day. Switching on occurs together with the push of a button.
  • Short working distance.

"Cobra"

Another domestic pocket dog repeller - "Dogs. No Flash +". It has a power of 120 dB per meter. The maximum range is 20 meters. Equipped with LEDs working in 2 modes: flash or torch.

Pros:

  • Compact and lightweight body.
  • Robust construction.
  • Charging level indicator;
  • Does not injure animals.
  • Automatic operation as well as LED mode switch.

Minuses:

  • Deaf, hard of hearing, rabid animals may not perceive the device.

Anti Dog Dazer II is a powerful device that affects not only dogs, but also cats, rodents, etc. The device has a frequency of 24.3 kHz and a power of 166.5 dB. It works effectively up to 15 meters away.

Pros:

  • Scares off different animals.
  • High power.
  • Fastening for belts.
  • Safe for animals and people.

Minuses:

  • Short range.
  • There is no way to regulate the strength of the radiation, for example, for training.
  • There is no light source.

Anti dog dazer ii

The manufacturer of the compact device, Rexant, guarantees that it can scare away even the most aggressive dogs. Work is carried out at a distance of up to 30 meters. The frequency is 25 kHz. Equipped with a flashlight.

Pros:

  • Ability to switch between scare and train mode.
  • Long distance.
  • Doesn't harm animals.

Minuses:

  • Does not scare off all varieties of dogs.

The MELEON ultrasonic repeller works at a distance of 10 to 15 meters. It has a frequency of 25 kHz. Country of origin - China. Available in black and yellow.

Pros:

  • Ability to switch between training, scare and flashlight modes.
  • Proven to ward off dogs, but at closer range than indicated.

Minuses:

  • Low range of use.
  • The LED only works in flashlight mode, no flash.

Ultrasonic Repeller MELEON

One of the best domestically produced devices is the SITITEK Thunder-250M, the range of which is limited to 20 meters. Working frequency - 25 kHz.

Pros:

  • Long range of use.
  • Equipped with flashlight and siren.
  • Safe for animals and people.
  • Compact size.

Minuses:

  • High price.

It should be noted that all compact species have a similar operating principle. To activate the ultrasound, you must press the button and aim at the animal. With the appropriate functions, many models have a dedicated signal strength switch for training and repelling, as well as flash and flashlight.

Stationary repellents are broad-based. Of these, the Tornado-115 model stands out the most. The device is equipped with 2 emitters, which helps to expand the angle of the device. It is usually placed in front of the entrance of the home area. The power is 115 dB, the range is 20 sq. meters. Powered by 220V power supply.

Pros:

  • Works from -5 to +40 degrees Celsius.
  • Small size.
  • High efficiency.
  • Constantly changing ultrasound algorithm.

Minuses:

  • Breakdowns may occur from time to time.
  • Requires constant connection to the network.

Model "Tornado-115"

Another good option is the EcoSniper LS-937CD. It works at an angle of 90 degrees, a range of 15 meters, which provides a coverage area of ​​200 sq. meters. Frequency from 16 to 23 kHz.

Pros:

  • Large area of ​​influence.
  • Guaranteed dog scaring.
  • Safety for people and low weight.

Minuses:

  • Flimsy body.
  • Permanent connection to the power supply (220V)

Thus, there are a large number of options for scaring away stray dogs both on the site and from a specific person. The main thing is to take into account all the necessary parameters when choosing to achieve the best result.