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
Pigeon repellent

The pigeon defence system from ISOTRONIC made a very good impression in our test. The product makes it possible to keep pigeons away from eaves or other surfaces. The spikes are set up to make it impossible for the birds to land on these surfaces . As a result, the birds are driven away from the previously targeted places and you no longer have the problem of the animals settling down and making bird droppings.
This alternative offers long-term protection against birds without injuring them at the same time. Installation is very simple and the spikes can be mounted on all common surfaces . Thanks to the click system, the individual modules can be installed not only in one piece but also individually .
The solution is animal-friendly, as the spikes have a predetermined breaking point and the animals are not killed.

Advantages

✅Simple, versatile application
✅Birds are not killed
✅Long-term protection against birds
✅Family-run company

Disadvantages

❌Material consists largely of plastic

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 – unfortunately use of plastic bags for spikes74 points
Product labellingLabelling available – but misleading with ‘packaging without plastic’92 points
MiscellaneousHigh-quality packaging, also suitable as a gift100 points
Total92 points
Weighting: 15%
*The maximum score is 100 points
Verpackung Taubenabwehr ISOTRONIC
Packaging of the pigeon repellent

The pigeon repellent from ISOTRONIC arrived for our test in a typical shipping box. The box was undamaged and easy to open by removing the adhesive strip. The box contained the rails and the poles, which had to be assembled by the user. Unfortunately, individual plastic bags were used to package the spikes, which does not make it particularly environmentally friendly.
The packaging protects the product from scratches and dirt! In this case, the product was fully protected and the pigeon repellent was therefore in perfect condition.
The operating instructions, which could be read in 6 languages, were printed on the box, which also avoids waste.
The packaging of the pigeon repellent is not completely recyclable.
The first impression of the pigeon repellent 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?

CriterionRemarkPoints achieved*
Package contents & scope10 rails and spikes included individually – spikes packed in plastic bags95 points
Instructions for usePrinted on the cardboard – In over 6 languages (including German), clearly written100 points
Contact informationCan be found on the box – unfortunately no email or customer hotline given90 points
Total95 points
Weighting: 15%
*The maximum score is 100 points

After unpacking, there were ten rails and 100 spikes on the kitchen table. The rails were stored unpacked in the box and the spikes were packed ten at a time in a plastic bag .
The use of the plastic bag would probably not have been necessary, but it guaranteed that no scratches or dirt would get onto the spikes.
The operating instructions were printed directly on the box, which saves resources. An email address could only be found using the QR code printed on the packaging.
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?

CriterionRemarkScore achieved*
Visual appearanceVery good visual appearance100 points
ProcessingVery good workmanship, no edges or defects97 points
StabilityProduct appears very stable, but it has a predetermined breaking point, which is common for items of this type98 points
Sustainability of the productNo information about sustainability, but attention was paid to waste avoidance in the packaging, but the spikes were still placed ten at a time in plastic packaging62 points
Total89 points
Weighting: 20%
*The maximum score is 100 points
ausgepackte Taubenabwehr-Module bereits zusammengebaut - beide Varianten
Unpacked pigeon defence modules already assembled – both variants

The pigeon defence system makes a very good visual impression. It has rounded corners and has no manufacturing defects. The rail is made of plastic and the spikes are made of metal. The customer is encouraged to put the spikes together themselves as they see fit. It is possible to install the spikes either uniformly in one direction or alternately (see picture).
The product impresses with its low weight and sturdy workmanship.
The only indication of sustainability can be found in the packaging of the pigeon repellent, as care has been taken to use as little plastic as possible.

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 assemble and install in the desired location (e.g. with cable ties or similar)
however, the stability varies depending on the surface
97 points
Possible applicationsMany possible uses – according to the manufacturer, it also helps against cats, martens and raccoons100 points
InstallationVery easy to install – modules can be divided and clicked together by the click mechanism100 points
Total99 points
Weighting: 30%
*The maximum score is 100 points

We really enjoyed installing and using the ISOTRONIC pigeon defence system during the test. Installation is child’s play and can be carried out in two ways. Either the spikes are installed uniformly in one direction or alternately in different directions.
After installation, the pigeon repellent can be placed in the desired location so that no more pigeons will settle there. If birds do land here, the spikes have a predetermined breaking point that breaks if too much pressure is applied.
The birds are therefore only driven away and not killed. In addition to birds, you can also prevent unloved cats, martens or raccoons from climbing over your garden fence. This was tried in our test and we can say that both the annoying neighbourhood cats were deterred from jumping over the fence and the birds were deterred from nesting on our ledges.
We are talking about a very good product that takes care not to kill all the unwanted guests while driving them away.

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.

CriterionRemarkPoints achieved*
Price / performance ratioGood price-performance ratio92 points
Rating cutNot rated, as there are still too few customer reviews
Total92 points
Weighting: 20%
*The maximum score is 100 points

Prices of up to €31.99 are charged on the Internet for equivalent products. Very inexpensive products are available from as little as €16.99. With a price of €24.95, the pigeon repellent from ISOTRONIC is therefore in the middle price segment in our test. The price ratio is very good for the quality and scope of services you get.

Overall result

WeightingScore achieved*
1. packaging & labelling15%92 points
2. package contents & instructions15%95 points
3. product processing & appearance20%89 points
4. in the practical test30%99 points
5. price/performance & consumer reviews20%92 points
Total94 points
*The maximum score is 100 points
Pigeon repellent
of the brand
ISOTRONIC
achieved
94
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
220912984
. 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

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