Ultrasound cannot be heard by the human ear. However, there is a small overlap between the higher frequency band (17-20 kHz) emitted by Smart Mono and the human hearing range. This can sometimes be heard. In addition, due to the differences in the manufacture of the speakers it happens that sometimes a small beep is heard, so we do not recommend placing it in the bedroom.

Usually not. What you absolutely need to know is that birds cannot hear ultrasound in any way, since their hearing is almost completely in the same range as humans. In the case of dogs, our experience is that urban (typically smaller) dogs absolutely do not hear, as do mixed breeds and older purebreds. Only a few breeds of hunting dogs have the hearing to detect ultrasonic alarms. Fortunately, they are usually so well-behaved that they will not bark at you, they simply stay away. In the case of cats, we no longer know of a similar regularity, but even among them there are rare individuals that can hear. Cattle, pigs and other farm animals are also not bothered by ultrasound.

The device can also be used outdoors, but only if it can be exposed under a cover, e.g. under a terrace. The rodent repeller is not waterproof, so it can be damaged by direct rain.

Many people have problems with rodents getting into the engine compartment of their car. However, when you think about installing a Vadalarm Rodent Repeller in the engine compartment, there are two important things to note that unfortunately make it a bad idea. Firstly, our rodent alarms operate on 5V (via an adapter), while your car has a 12V system. While this would not be an insurmountable technical obstacle, it is a bigger problem that the engine compartment of modern cars is full of soundproofing materials that absorb not only engine noise but also ultrasound. In conclusion, we do not recommend, and would not advise anyone to install a rodent repeller in the engine compartment.

You may have noticed that the range of our rodent repeller is given in meters and not in square meters, since the spread of sound cannot be measured in square meters either. It is much clearer to examine how far a certain sound travels from its source. Our rodent repellers can emit ultrasound at a distance of 30 or, in the case of extra power, 60 meters at an angle of 120°. A simple calculation results in 1000 and 2000 m². However, it is important to know that the shape of this is a circle, so one device alone will not cover a building with the same floor area. Our best recommendation is to place a device in each airspace to be protected in such a way that there are as few obstacles as possible in the path of the sound.

You have probably come across rodent repellers for a tenth of the price of the Vadalarm rodent repeller, so you may rightly wonder why ours costs so much. But if you take a closer look at how our product is put together, you will already understand. The most powerful piezo speaker on the market is put through quality control together with our specially developed amplifier and microprocessor circuit in the waterproof device case. If you choose the Smart version, you get even more: we even build a battery for you in our Bluetooth and Wifi-capable control circuit, so your rodent repeller will work reliably for weeks even away from an outlet. In addition, you can check its operation with a smartphone application. We will deliver it to you the next day and completely free of charge in snow and ice.

Our Battery Powered Rodent Repellers are delivered from the factory with approximately 50% charge. After that, you should charge the battery before using it. The first charge will take a maximum of 2-3 hours, subsequent charges a maximum of 4-5 hours. You can check the charge level with a welcome message after switching on

Our battery powered rodent repeller is an intelligent device, so it constantly monitors the energy available to it. When the battery is freshly charged, it will go off frequently, then as the days go by and the battery runs down, it will sound less and less frequently. It does this to save energy and maximise operating time. This method has enabled us to achieve an average of 11 days of operation on a single charge. However, it is important to be aware that the mechanism described above means that the efficiency of the alarm is at its best during the first few days. Later, although not significantly, it decreases. In addition, it is important to know that turning on the extra functions results in faster discharge.

There is a lot of misinformation on the internet that ultrasound can be used to alert mosquitoes, other insects and even moles. This has led several of our customers to consider outdoor installation. Although it can be used successfully outdoors to control rodents and weasels, we do not recommend using it buried in the ground to control moles.

Yes, it can be done, but it's not a common request, so we don't manufacture it separately, and you're better off buying our Vadalarm Smart Pro in rodent Repeller mode for a few thousand forints extra!