Can humans hear ultrasound?

Humans generally cannot hear frequencies classified as ultrasound. In very rare cases, people with exceptionally sensitive hearing may perceive it, but this is extremely uncommon.

Does ultrasound pass through walls?

No, ultrasound is generally absorbed by walls. Very thin drywall may allow minimal transmission, but brick or concrete walls block it almost completely.

Can pets hear ultrasound?

Most pets have adapted to human environments, which has reduced their hearing sensitivity. Some dog breeds and younger animals may hear ultrasound better, but ultrasonic repellents for pets have very low effectiveness.

Do ultrasonic repellents work on birds?

Unfortunately, biology shows that ultrasonic products have no effect on birds, as they cannot hear ultrasound. Their hearing is more similar to humans than to wild mammals.

Do I need to call a professional to install an ultrasonic repeller?

No, the installation process is very simple: you place the repeller facing the direction from which you heard the scratching noises, then plug it into a power outlet or switch it on.

Can ultrasonic repellers work effectively outdoors as well?

Yes, ultrasonic repellers can operate effectively both outdoors and indoors.

Does the effectiveness of the repellers decrease over time?

Ultrasonic repellers generally operate using variable frequencies to prevent this from happening, and Vadalarm products are specifically designed to work in this way.

Is an ultrasonic repeller harmful to pets or humans?

Ultrasonic repellers generally do not disturb dogs or cats, humans cannot hear them, and they do not cause harm to either animals or people.

How do ultrasonic insect repellers work?

Based on our experience, unfortunately they do not work effectively. Ultrasonic insect repellers lack strong scientific support, as insects primarily rely on vision for orientation and do not possess well-developed hearing. As a result, they generally do not have sensory organs capable of detecting ultrasonic sound.

What should I do if a wild boar approaches me?

Wild boars generally do not attack humans without provocation, so there is no immediate reason to panic. However, if the animal is startled and a sow is accompanied by her piglets, there is a real risk that she may charge toward you. In such a situation, the simplest and safest option is to climb a nearby tree, as wild boars are unable to attack at height.

I have an orchard, but birds are eating part of the harvest. What can I do?

Smaller birds often cause problems by pecking at and consuming the fruit. It is worth trying an acoustic bird repeller, as smaller birds are particularly afraid of the sounds of birds of prey.

What is the lifespan of an ultrasonic repeller?

In battery-powered devices, the battery gradually degrades over time, therefore it is recommended to replace it every 4–5 years. The other components are more durable, and such a repeller can typically operate reliably for 5–7 years.

What is the effective range of ultrasonic sound?

The effective range depends on the speaker used and can vary from just a few meters up to as much as 1–2 kilometers.

Does ultrasonic repelling interfere with deep sleep phases?

No, ultrasonic repellers do not affect sleep processes occurring during the REM phase.

How loud is the bird repeller function? Can it be used in urban areas? Will it disturb neighbors?

The sound of acoustic bird repellers will most likely be audible in the immediate vicinity. For this reason, they are available in different sizes and power levels, so that when protecting smaller areas, they can also be used in residential or urban environments without causing unnecessary disturbance.

Can bats also be repelled?

Unfortunately not. The hearing range of bats spans a very wide spectrum, and they also have the ability to switch frequencies if they detect interference in the channel they are currently using.

What does a wild boar eat?

A wild boar’s diet consists of approximately 80–90% plant-based food and 10–20% animal-based food or various organic waste materials.

Is a permit required to use wildlife repellents?

No, a permit is not required. These repellents do not have any harmful effects on animals.

Is it allowed to use a bird repeller in residential areas?

No, the use of bird repellers is not allowed in Natura 2000 protected areas during the breeding season. In all other cases, their use is permitted.

How can pigeons be repelled?

Pigeons are intelligent animals and are therefore difficult to repel. It is advisable to use a bird repeller that is capable of emitting the calls of multiple predatory bird species, as this reduces the chance of habituation.

I am looking for a wildlife warning whistle for my car. What do you recommend?

I do not recommend this type of repeller. If a car traveling at 80 km/h does not deter wildlife by its presence alone, then a small whistle will not be effective either.

I hit a wild animal with my car. Who compensates for the damage?

If your vehicle has comprehensive insurance (CASCO), or if your insurance policy includes such coverage, the insurance company will compensate for the damage.

How can one protect against wild boars?

Wild boars are sensitive to high-frequency sounds, therefore a properly positioned repeller can provide protection against them, for example a device such as the Vadalarm Smart Duo.

What exactly does the wildlife crossing warning sign mean?

The sign indicates that on the given road section there is an increased likelihood of wildlife such as roe deer, red deer and wild boars crossing the roadway.

Where should I report a wildlife collision?

If you hit a wild animal in Hungary, you are legally required to report the incident. If there has been a serious accident or injury, you should call the emergency number 112. If there are no serious injuries, the incident must be reported to the competent hunting association.

In which situations is ultrasonic repelling not effective?

Ultrasonic repelling is not effective in situations where the emitted sound is blocked by walls, thick furniture, ceilings or other solid obstacles. Effectiveness may also be reduced in highly segmented or cluttered spaces where ultrasound cannot propagate freely. In outdoor applications of ultrasonic animal repellents, it is also important to ensure that the speakers are not obstructed by plant leaves or tree branches.

Which obstacles reduce the effectiveness of ultrasound the most?

Solid walls such as brick or concrete, thick wooden structures and sound-absorbing materials reduce the propagation of ultrasound to the greatest extent. Softer materials, such as textiles and cardboard, can also significantly weaken the effect. Unfortunately, ultrasound is also largely absorbed by drywall, which is commonly used in the construction industry.

How long does it take before visible results can be expected when using the repeller?

Visible results can usually be observed between a few days and a few weeks, depending on the type of animal, the extent of the infestation, and how optimally the device is positioned. It is certain that a significant result should be noticeable within 14 days. Even if the presence of the animals does not disappear completely, it will almost certainly be greatly reduced.

Is it recommended to use multiple devices in larger areas?

Yes. In larger or segmented areas, the use of multiple devices is recommended so that ultrasound can cover the protected area from all directions and no “dead zones” remain. The most important aspect is to fully protect the side of the area from which the animals are approaching.

How can I determine which Vadalarm animal repeller is suitable for my specific problem?

To select the appropriate device, it is important to consider which type of animal you want to protect against, whether the device will be used indoors or outdoors, and the size of the area to be covered. Based on these factors, it is easy to determine which model is the most suitable. For smaller indoor areas and rodent protection, lower-power devices such as the Vadalarm Rodent Repellers and the Vadalarm Smart Mono are ideal. For protecting larger agricultural areas against wildlife, the Vadalarm Smart Pro, Duo, Tripla, Hexa and their variants are the most suitable, as they are equipped with solar panels on top and lithium batteries inside.

What is the difference between the various Vadalarm Smart models?

The models primarily differ in terms of performance, covered area, repelling modes and additional features. The Vadalarm Smart Pro (single-speaker) and the Vadalarm Smart Duo (dual-speaker) models are designed for smaller gardens, while the Vadalarm Smart Tripla, Hexa and their variants are intended for larger areas and specifically for agricultural use.

Is the same device suitable for both indoor and outdoor use?

There are models that can be used both indoors and outdoors, however outdoor environments require higher performance and weather-resistant construction, which is usually combined with a solar panel to provide power supply. Therefore, it is always recommended to choose the model intended for the specific use case: primarily the Vadalarm Smart Mono and smaller rodent repellers for indoor use, and the larger variants for outdoor applications.

At what height should an ultrasonic repeller be installed?

The repeller should generally be installed at the typical movement height of the target animals. For rodents, lower placement is recommended, while for larger animals the device should be installed somewhat higher. In the case of wild boars, roe deer and deer, the repeller should be placed approximately at waist height, whereas for rabbits it is recommended to install it around knee height.

In which direction should the device be oriented for the most effective operation?

The device should always be directed toward the direction from which you expect the animals to approach. It is important that there are no direct obstacles in front of the ultrasonic emitter, therefore it should not be placed inside bushes, behind cabinets, or especially inside enclosed boxes.

How long should an ultrasonic repeller operate continuously?

For the best results, the repeller should be operated continuously, especially during the initial period. This prevents animals from becoming accustomed to the environment. Vadalarm Smart animal repellers are programmed to take into account the battery charge level and the current time of day when calculating activation frequency. Their operation is also partially randomized to further reduce the likelihood of animals getting used to them.

Do ultrasonic repellers require maintenance?

Ultrasonic repellers generally require minimal maintenance. From time to time, it is advisable to check their operation and, in the case of outdoor use, clean the device from dirt and debris. Always ensure that the speakers are not exposed directly to water or high-pressure air. If larger debris enters the device, such as leaves, it should be removed. If the device is equipped with a solar panel, it is important to ensure that the surface remains free of limescale so that it can charge with maximum efficiency.

What most strongly affects the lifespan of an ultrasonic repeller?

The lifespan is primarily influenced by weather conditions, continuous operating time and the quality of the power supply. In battery-powered devices, the condition of the battery is the determining factor. Fortunately, Vadalarm products can be serviced at the Vadalarm service center in Budapest, their batteries are replaceable, and with proper maintenance and, if necessary, servicing, their lifespan can even be doubled.

How often should the battery be replaced in solar-powered devices?

In general, it is recommended to replace the battery every 4–5 years, as battery capacity gradually decreases over time. Since the battery is permanently built into the products, replacement can only be carried out at the official Vadalarm service center, and home replacement is not recommended.

Can ultrasonic repellers cause long-term stress in animals?

The purpose of ultrasonic repellers is to keep animals away, not to cause them harm. Devices operating on variable frequencies do not cause long-term stress or health damage.

What common misconceptions exist about ultrasonic repellers?

A common misconception is that ultrasonic repellers are equally effective against all animals and in all environments. In reality, effectiveness strongly depends on placement and environmental conditions. Ultrasonic repellers are not suitable for deterring animals that do not have ears (such as fruit flies, insects, mosquitoes, flies, etc.), nor are they effective against animals that are physically unable to hear ultrasonic frequencies, such as birds.

Is ultrasonic deterrence considered a humane solution?

Yes, ultrasonic deterrence is considered a humane solution, as it does not cause injury or permanent harm to animals; it merely repels them from the protected area.

Do Vadalarm products comply with EU regulations?

Yes, Vadalarm products comply with the relevant safety and technical regulations of the European Union. They do not contain hazardous substances and their operation does not pose any risk to human health.

Can ultrasonic repellers be used near nature conservation areas?

When using ultrasonic repellers near nature conservation areas, local regulations should always be taken into account. In general, the use of ultrasonic repellers is not prohibited, but certain areas may impose restrictions. Compared to audible-range deterrents, a major advantage is that birds, which are typically the most protected species, cannot hear ultrasound either during or outside the breeding season.

Why does ultrasonic deterrence not work in every case?

The effectiveness of ultrasonic deterrence is significantly influenced by placement, the presence of obstacles, and the behavior of the specific animal. If the device is not installed in an optimal location, the desired results may not occur. In addition, it is important to consider during planning that animals will not leave an area if they have no alternative options. Therefore, animal deterrence can only be truly effective if animals have access to shelter, food, or water sources elsewhere and are able to relocate there.

When should an alternative deterrence method be chosen instead of ultrasound?

If ultrasonic deterrence does not produce satisfactory results, or if the target animal does not respond to it, it is advisable to use alternative methods such as acoustic or visual deterrence. Fortunately, Vadalarm Smart products also offer audible-frequency wildlife and bird deterrence, which can be activated to increase effectiveness, along with the optional Turbo mode. If this still does not yield results, it is recommended to combine sound with light using a Vadalarm Smart Flash product, or to introduce scent-based deterrents, such as Vaporix wildlife repellent.

How do acoustic bird repellers work?

Acoustic bird repellers operate using audible sounds that create a sense of danger in birds. Most commonly, they emit the calls of predatory birds or alarm-type noises, causing birds to avoid the protected area.

Do bird repellers work with ultrasound or audible sound?

Bird repellers operate using audible sound. Ultrasound is not effective against birds, as their hearing functions in a frequency range similar to that of humans.

Why is ultrasound not effective against birds?

Birds are not sensitive to ultrasonic frequencies, therefore such devices do not trigger an escape response in them. For this reason, only repelling methods based on audible sound are recommended against birds.

Against which bird species are bird repellers effective?

Bird repellers are primarily effective against small to medium-sized birds, such as starlings, pigeons, crows and sparrows. The exact effectiveness also depends on the behavior of the species and the surrounding environment. In general, acoustic bird repelling is most effective against smaller, seed-eating species, as they are particularly afraid of the sounds of larger predatory birds.

Can birds get used to bird repelling sounds?

Yes, if the repelling system always uses the same sound at the same intervals, birds may become accustomed to it over time. For this reason, devices that use variable sound patterns are more effective, such as the animal repellers of the Vadalarm Smart product range.

This animal repeller scares away wilds, birds and even mice!

Tóth Miklós

Built on years of experience, the Vadalarm Pro is our most cost-effective wild repeller to buy and has been successfully used by thousands of satisfied customers to repel wild animals. That's why we thought it deserved to be our very first upgrade this year. It's no light upgrade, and it's fair to say that it's our biggest step forward yet in the smart repeller market.

Ultrasound against wild damage

There is no perfect solution againts wild damage as well as damage caused by rodents or birds. However, ultrasonic, acoustic alarms are the most humane and statistically the most effective method of keeping wild animals and rodents away. The ultrasonic solution is to emit ultrasonic sounds that are disturbing to rodents and wild animals, but inaudible to you. Pests with good hearing find it very difficult to get used to the noise, because the frequency of the noise is constantly and randomly changed by the built-in electronics of Vadalarm products.

Audio-frequency sounds against birds

Imitating the sound of birds of prey is one of the most effective ways to repel birds. Contrary to misconceptions, birds are not affected by ultrasound because they hear sounds that are much the same as we humans do, so ultrasound is not effective. Therefore, they can be repelled by the attacking sounds of birds of prey, or possibly by the alarm calls of their mates.

Until now, to solve both your problems (wild and birds) you had to buy two separate products. By the spring of 2022, we'll have made it possible for the Vadalarm Pro to produce these two very different types of sound at the same time, making it suitable for scaring off wild animals, small birds and rodents and rabbits. And you can switch between the different functions using our smartphone app. Of course, you are right to feel a little doubt in the air. After all, in many places, this kind of multifunctionality is already promised on cheap products. "So what's so great about this new development?" you might ask. If you go to the web shops selling a mass of Chinese products, you will see for yourself that, without any thought for the quality of the product, its internal content or even its mechanism, they are adding animals to the list of alarmed animals that do not even have ears. So even if you never buy from us, we ask you to always investigate dubious claims thoroughly.

It does not alarm everything!

So, it's important to know that our acoustic alarms still don't alarm everything but wild animals, birds and rodents, because we've included electronics in the Vadalarm Pro that can emit a disturbing sound for all 3 animals (so whichever animal can't be ultrasonically alarmed will be alarmed in a different way). And one more important note: ultrasound still cannot pass through walls, trees and bird sounds are weakened by these barriers. So please continue to take note of our earlier suggestions for placing it out.

How to configure your unique animal alarm

You can choose the alarm features of the new Vadalarm Pro animal alarm when you purchase the product in our webshop or by calling our customer service. If you change your mind later and still need a feature you didn't request when you bought the product, you can request to add a new feature via the Vadalarm Smart app. In the Vadalarm Smart Application you can also control and monitor the operation of your product. You can see detailed information about your Vadalarm Pro, which will shorten the time needed to identify a problem in case of a report. You can check the battery charge level and the current power of the solar panel. You can check the distance of the device from you, which can help even on a 10-15 hectare property.

And if you don't want to alarm all three types of animals at the same time to extend battery life, you can also turn the purchased features on and off from the app.

This animal repeller scares away wilds, birds and even mice!

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This animal repeller scares away wilds, birds and even mice!

Vadalarm Smart Pro

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