About Us

Prüfengel offers authentic consumer tests in which real users share their experiences with products. Our tests are based on practical applications in everyday life and reflect the opinions of consumers. As we focus on consumer tests, we do not carry out material, long-term or laboratory tests. Our aim is to provide honest feedback to help you make a purchasing decision. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product reviews, please click here.

ISOTRONIC
Cat and dog repeller

The cat and dog repeller from ISOTRONIC made a good impression in the test. The product prevents cats and dogs from visiting the garden, barn or other places. According to the manufacturer, the device has an effective radius of up to 40 square metres. With a tone frequency of 16-60 kHz, this signal tone has an unpleasant effect on cats and dogs, which means that maggots give the garden or similar a wide berth. It works in a similar way to the marten repellent test.
No chemicals are used here and the packaging in particular is very environmentally friendly, as care has been taken to ensure that no plastic is used in the packaging. The materials used are also very well made. The cat and dog deterrent is installed by attaching it using cable ties or standard screws.

Advantages

✅Beautiful, environmentally friendly packaging method
✅Suitable for many areas of application
✅Waterproof (IP54)
✅Family-run, German company

Disadvantages

❌No customer hotline for any questions

The test

General information

We have looked at and tested the product in detail in a practical test. In the following, we take a closer look at the features and impressions. The product is subjected to our test procedure from the packaging, materials and quality to the range of functions and handling.
To give you a quick overview, we work with a points system. The maximum possible number of points per area is 100 points. The final overall score is calculated from the average of all tested features, taking into account the respective weightings. For a detailed insight into our comprehensive evaluation process, which forms the basis of all our product ratings, please click here.

The first impression

The packaging and labelling

ℹ️ Here we take a closer look at packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be ensured.

CriterionRemarkPoints achieved*
Product protectionCarton is sturdy, product sufficiently protected100 points
Sustainability PackagingItem was packed compactly – no use of plastic for packaging95 points
Product labellingCE labelling available100 points
MiscellaneousHigh-quality packaging, also suitable as a gift100 points
Total99 points
Weighting: 15%
*The maximum score is 100 points
Verpackung des Katzen- und Hundeschrecks von ISOTRONIC
Packaging of the cat and dog repellent

The cat and dog repe ller from ISOTRONIC arrived for our test in the typical shipping box, so it was easy to open by removing the adhesive strip and was delivered undamaged.
The box contained the cat and dog repeller, which was wrapped in paper, as well as a detailed instruction manual, which could be read in over 4 languages. The packaging protects the product from scratches and dirt! In this case, the product was fully protected and the cat and dog repeller was therefore in perfect condition.
The packaging of the cat and dog repeller is completely recyclable.
The first impression is very good, as neither the product nor the packaging used was damaged.

After unpacking

Package contents and instructions

ℹ️ Most people’s first impression after unpacking is immediately memorable. Are the contents of the pack complete and does the manufacturer make it as easy as possible for me to use the product straight away?

CriterionRemarkScore achieved*
Package contents & scopeCat and dog deterrent, 6xAAA batteries and fastening elements100 points
Instructions for useWritten in over 4 languages (including German), easy to understand100 points
Contact informationCan be found on the box – unfortunately no customer hotline given90 points
Total95 points
Weighting: 15%
*The maximum score is 100 points

After unpacking, there were several individual items on the kitchen table. In addition to the cat and dog repeller, our test included two metal screws and four cable ties, which are used to attach the cat and dog repeller.
The manufacturer also provides an instruction manual, which explains the installation of the cat and dog repeller to the customer in over 4 languages. Installation and commissioning went without a hitch.
An e-mail address could be obtained by scanning a QR code on the packaging. The cat and dog repeller is guaranteed for over 2 years.
All in all, this is a very good way to send a product.

The first time in your hand

Product processing and appearance

ℹ️ Before we start the practical test, we take a close look at the product processing. How high quality are the materials used? Is the look and feel satisfactory?

CriterionRemarkPoints achieved*
Visual appearanceVery good visual appearance100 points
ProcessingVery good workmanship, no edges or defects97 points
StabilityProduct appears very stable and rigid98 points
Sustainability of the productNo information about sustainability, except reference to plastic-free packaging72 points
Total92 points
Weighting: 20%
*The maximum score is 100 points
Verpackungsinhalt des Katzen- und Hundeschrecks
Package contents of the cat and dog repellent

The cat and dog repeller from ISOTRONIC makes a very good visual impression in the test. In addition to the simple design, it has no manufacturing faults. The cat and dog repe ller is made of plastic, which is common for products of this type. The product is also waterproof in accordance with the “IP54” standard.
The product impresses with its low weight and sturdy workmanship. The customer is provided with high-quality protection against martens, which also emits visual signals in the form of a flashing LED when it emits a signal tone.
Unfortunately, we cannot find any information on sustainability , but the materials used appear to be of very high quality, which is why we assume a long service life.

This is what our practical test showed

Does the manufacturer keep its advertising promises?

ℹ️ Our practical test is the most relevant and therefore the most important. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

CriterionRemarkPoints achieved*
UtilisationVery easy to use – simply insert the batteries, install in the desired location and switch on, then the cat and dog repeller starts up90 points
Fastening variantsTwo mounting options100 points
Effectivenessrather low with domestic cats – curiosity was aroused
with stray cats it works well in my case (installation in covered passageway)
75 points
Total88 points
Weighting: 30%
*The maximum score is 100 points

We enjoyed installing and using the ISOTRONIC cat and dog repeller during the test. Installation is easy and can be carried out in two ways. The cat and dog repeller can either be attached to a post with two screws or with four cable ties. The materials are supplied for both variants.
Two trials were carried out to test the effectiveness. In the first test, I placed the cat and dog repeller near the cat in the house to see how he reacted. The cat heard the noises, but was not very impressed by the disturbing noises. As the manufacturer points out that it takes some time for the cat and dog repeller to get used to it, I installed it in the covered driveway to drive stray cats away from the car. In my case, this worked after just a few days and the cats no longer want to go to these places. It is important to mention here that the noise can sometimes be heard by people (depending on their hearing) and it is extremely important where the device is installed, as the effective radius of 40 square metres is not particularly large .

Price/performance ratio

and ratings from consumers

ℹ️ Finally, we look at how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it? We also analyse consumer reviews and check whether the critical and positive reviews are actually justified.

CriterionRemarkScore achieved*
Price / performance ratioGood price-performance ratio84 points
Rating cut2.7 out of 5.0 stars on Amazon0 points
Total42 points
Weighting: 20%
*The maximum score is 100 points

On the Amazon platform, consumers have given the product an average rating of 2.7 stars. Criticism is often levelled at the fact that the signal tones do not deter cats. Many customers like the fact that it is easy to install and has a very attractive design. In our practical test, we were also able to confirm that the design was very attractive and the installation is very simple. However, we noticed during our test that the deterrent for the neighbour’s cat worked.

Prices of up to €47.89 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €17.55. The cat and dog repeller from ISOTRONIC is therefore in the middle price segment in our test with a price of €29.95. The price ratio is good for the quality and scope of services you get.

Overall result

WeightingScore achieved*
1. packaging & labelling15%99 points
2. package contents & instructions15%95 points
3. product processing & appearance20%92 points
4. in the practical test30%88 points
5. price/performance & consumer reviews20%42 points
Total82 points
*The maximum score is 100 points

The ISOTRONIC brandcat and dog repeller therefore received an overall score of 1.9 from us and has thus been successfully certified for our test seal. The test was carried out in the test period 10/22 and is listed in our database under the licence number 220912654. You can find more information about our test procedure at www.prüfengel.de/testverfahren.

Test result:

1,9

Cat and dog repeller
of the brand
ISOTRONIC
achieved
82
Points in our test and therefore passed. The test was carried out in the test period
10/22
and is stored in our database under the licence number
220912654
. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

The practical tests are based on careful observation and do not include long-term or laboratory tests. The test ratings reflect the opinion of our experts and are based on careful analysis. We would like to emphasize that these evaluations do not claim to be exhaustive and reflect both subjective and objective impressions. The assessments are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a reputable and thorough testing process, which has been developed in a long and professional process in close cooperation with our experts.

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Evaluation process

You can find a detailed insight into our evaluation process, which forms the basis for our product ratings, here:

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