Ultrasonic dog repeller: which is best?

An ultrasonic repeller is a device that doesn't harm dogs, but reliably protects humans by maintaining distance between them and the dog. To learn how they work, which ones are the best, and what to consider when choosing a model, consider the key features and parameters.

Varieties

There are two types of ultrasonic repellers on sale: stationary and portable.

Stationary These are powerful devices for protecting large areas: courtyards, private properties, areas near stores, offices, kindergartens, and recreation centers. They cover a wide range and are designed to simultaneously protect everyone within the area.

These repellents are usually plugged into an electrical outlet, and are less commonly powered by solar panels. They are more expensive than portable models, although more affordable options are available.

Portable Pocket repellers are very small and lightweight, making them easy to carry in a purse, briefcase, or pocket. They are versatile, as anyone of any age can use them. They are battery-powered. This type of repeller is the most popular, as it provides personalized protection anywhere.

Operating principle

The mechanism is based on the fact that dogs' hearing has a wider range than humans'. While humans can perceive sound wavelengths up to 20 kHz, dogs' hearing is twice as wide—up to 40 kHz.

Ultrasonic repellents vary in power, which is the most important parameter. The higher the power, the louder and more unpleasant the sound is for the animal. If the power is too low, the dog may simply not react. Furthermore, the range of the sound waves will be too small, meaning the attacking animal will be able to get too close to the person.

Experts warn that ultrasonic repellents with very high power can cause side effects in the user, including headaches and earaches.

Selection parameters

Ultrasonic repellents operate in a range inaudible to the human ear, and their power can only be measured with specialized sensitive devices. It's virtually impossible to verify that the stated specifications match the actual ones, so unscrupulous manufacturers may not adhere to them. For this reason, it's crucial to purchase such products from reputable companies with genuine reviews.

Another important parameter is the effective range. This indicates the distance at which the dog will experience the most discomfort from the emitted ultrasonic waves. In most cases, it ranges from 5 to 15 meters.

Models

HOONT H973

A modern, portable ultrasonic repeller that repels potentially dangerous dogs from up to 15 meters away. The device is safe for animals, and the sound is inaudible to humans.

Works in two modes:

• ultrasound only

• ultrasound + siren + bright strobe light

The ultrasound frequency automatically changes every 1-2 seconds within a range of 25-40 kHz. This prevents habituation and prevents dogs from experiencing significant discomfort. The device's safety is certified by the EPA (Environmental Protection Agency).

Main characteristics:

• Dimensions: 130×45×40 mm

• Weight: 0.13 kg

• Impact area: up to 15 m

• Ultrasound level: 115 dB

Pros:

• Easy

• Charges from the mains

• Compact

Cons:

• The dogs' reactions are mixed (they may be scared, or they may show aggression)

• The battery is built-in and cannot be replaced with a spare one.

Typhoon LS 300+

The repeller emits ultrasound at a frequency of 18–25 kHz. The sound pressure level is 130 dB, which is higher than most similar devices. This allows for a range of up to 30 meters, although maximum effectiveness is up to 15 meters.

Powered by a Krona battery, it operates in temperatures ranging from -5 to +40°C. Operation is extremely simple: simply point the device at your dog and press the button for 2-3 seconds. In standby mode, the battery does not drain.

Main characteristics:

• Dimensions: 90×40×25 mm

• Weight: 0.08 kg

• Effective range: up to 30 m

Pros:

• Ease of use

• High efficiency

Cons:

• Battery is not included

• No strap or belt clip

"Dog No. Flash-Plus"

One of the most powerful ultrasonic repellers, with a sound level reaching 120 dB. It's suitable for situations where there's a risk of encounters with large and aggressive dogs. Humans cannot hear the ultrasound, making it safe even for children.

Important to remember when using:

• The sound is directional - there is a "dead zone" behind the device

• Do not turn on the device in your pocket or through clothing - fabric will muffle the signal.

• Use only in case of real danger.

• Do not use on your own dog.

There's a wide selection of ultrasonic repellers on the market. To determine which one is best, you need to understand the specifications and parameters of each model.

CD-100

• Coverage area: 5 m.
• Power – 125 dB, frequency – 25 kHz.

The front panel features a high-frequency speaker that generates a concentrated signal. The CD-100 features an effective addition: two rapidly flashing LEDs. This combination serves as an additional distraction in the dark. The pulsating flashes are unpleasant for a dog's eyes and can cause it to shift from an aggressive state to a state of confusion.

The repeller has a special training mode that doesn't harm your pet but can help break its bad habits of chewing furniture, tearing wallpaper, and so on. Conveniently, all modes are activated by a single switch.

Dazer 2

• Power – 120 dB.
• Coverage area: 9 m.

The advantage of this ultrasonic repeller is that the ultrasound spreads over a wide angle. This is essential if a person is being attacked by not just one animal, but a whole pack of dogs.

The device is equipped with a clip for attaching to a belt or other items of clothing. This product has received US and EU certification, guaranteeing its reliability and high quality. In addition to dogs, it is used by fox, wolf, and bear hunters. It weighs only 100 g.

KUOS

• Power – 110 dB, frequency – 25 kHz.
• Coverage area: 5 m.

This device is incredibly compact – it weighs only 30 grams. Despite this, it has a lifespan of 10 years. Its compact size makes it ideal for children. It operates with a single press, saving time in a dangerous situation.

• Power – 135 dB, frequency – 25 kHz.
• Coverage area: 6 m.

It features a pulse generator, which has proven to be more effective at repelling dogs. The device weighs 85 g including a Krona battery. It is currently the most powerful portable ultrasonic repeller available. The manufacturer provides a 12-month warranty.

LS-977F (SUPERDOGCHASER)

• Power – 135 dB, frequency – 20-25 kHz.
• Coverage area: 10 m.

The repeller's ultrasonic sound is accompanied by flashes of light, which animals perceive as a danger signal. The device is multifunctional and can be used not only for repelling but also for training dogs. The left button on the device generates ultrasound for training the dog. By pressing it for 1-3 seconds, the desired reflex can be developed.

The middle button of the repeller is for starting the ultrasound and light, and the right button is only for lighting the flashlight.

Reviews

Irina Fomina:

"I've been terrified of stray dogs since childhood, and my route to work takes me past a vacant lot where a huge pack of them always roams. For some reason, the idea of ​​buying an ultrasonic repeller never occurred to me until my colleagues recommended it. I chose one of the most powerful ones. And although the animals don't attack me, I now feel at peace when I pass by because I feel protected."

Yaroslava Makarenko:

"I bought this repeller after a large mongrel attacked my daughter and me while I was taking her to kindergarten. Thankfully, a passing man came to our aid. I bought an animal repellent that same day, even though I wasn't entirely confident in its effectiveness. But I've already seen it work several times! I also use it as a flashlight when I walk home with my daughter in the winter. It's very convenient."

Inga Torina:

"My son goes to and from school alone, so I can't take him there or pick him up. We live in a private area where there are always a lot of dogs running around, and you never know what they're up to. Sometimes they just pass by, and sometimes they start barking. To ease my worries, I bought him an ultrasonic repeller. The salesperson recommended an electric one, but they're schoolchildren, and they could hurt each other with it while playing around. High-frequency ultrasound isn't harmful to children, so I chose this model. We tested it on mongrels a couple of times, and they did run away."

Read also:

• How to stop a dog from peeing and defecating in the house
• Up to what age is a dog considered a puppy?
• How to choose a dog without making a mistake