CO2 measuring device traffic light from Grundig

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CO2 measuring device traffic light from Grundig

CO2 measuring device traffic light from Grundig

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The CO₂ measuring device from the Grundig brand impressed with a very good score. The test product therefore qualified for our Quality test seal and was ultimately given a final grade of 1.3.


Short product info:

The CO₂ measuring device offers the customer a simple, reliable instrument for effectively monitoring air quality, with automatic calibration and clear, colored display.

About the test:
We carry out our product tests according to a transparent and coherent evaluation system. The final grade includes points such as packaging, functionality, quality, customer reviews and the price-performance ratio.
The maximum possible number of points per area is 100 points.
Evaluations are made in the following areas:

1. The packaging
2. The first impression
3. The Practical test
4. Price-performance ratio

Furthermore, the product reviews and customer experiences available for the product are also included in the evaluation.

Important to know: 
When awarding our Quality test seal, we do not evaluate the quality of the test product in comparison with other products available on the market, but rather in comparison with our standardized Quality test standard!
You can find further details on the testing criteria here .

Below is our detailed test report on the product.


Product: CO₂ measuring device
Brand: Grundig
Tested: 18.04.2024
QS-Code: 25580454


The CO₂ measuring device was in the outer packaging made of plastic.
The remaining inner packaging consists of cardboard.

We found the sustainability of the packaging to be good.

The product was excellently protected by the packaging

The brand name, the address and a contact option as well as the barcode are clearly visible on the outer packaging /strong>.


The first impression of the product convinced our testers with its high-quality appearance.
When unpacking the product, no bad smell was detected.

The measuring device is battery-operated and can be recharged.
The first use of the measuring device is also good because the product is easy to use.

The CO₂ measuring device is delivered without accessories. An instruction manual is included.


The product CO₂ measuring device was developed to enable a simple and reliable measurement of air quality in different rooms and thus increase health and well-being.
The carbon dioxide measuring device fulfills this purpose excellently

Below we briefly explain how the test product works:
The measuring device is an easy-to-use and high-precision device for effectively measuring indoor air quality.

We found it particularly striking

    • Automatic calibration: takes care of calibration and set-up automatically in the background.
    • Can be used mobile and is charged via USB cable.

The product has a clear benefit and offers the user the following advantages, among others:

    • Gives light and sound signals for effective shock ventilation based on air quality.
    • Traffic light function allows easy reading of air quality in different environments.

The carbon dioxide measuring device is excellent to use.
When used properly, our testers found no risk of injury from sharp edges or protruding parts.


The CO₂ measuring device from the Grundig brand can be ordered on the Amazon trading platform for €44.99.

This puts this product in the medium price segment, as other carbon dioxide measuring devices are already available for purchase from €29.99.

8 Customers gave the product an average rating 4.8 stars.


In our test, the CO₂ measuring devicefrom the Grundig brand received a very good final grade of 1.3 >Result achieved and its quality was therefore confirmed perfectly in comparison with the standards of our quality standard ("QS standard")

[Zur Beachtung: Unsere Praxistests basieren vor allem auf dem ersten Eindruck, ohne Langzeit- oder Labortests. Wir übernehmen keine Haftung für Richtigkeit oder Vollständigkeit der Testergebnisse. Unsere Tests beziehen sich nicht auf gesetzliche Anforderungen, medizinische Wirkungen oder Inhaltsstoffe. Nutzen der Infos auf eigenes Risiko. Alle im Testbericht genannten variablen Angaben, wie Preise, Bewertungen, Testresultate u.ä., sind ausschließlich zum Zeitpunkt des Testdatums gültig.]

Breakdown of test categories

Top categories Achieved score*
Packaging, sustainability, labels 87.5
First impression, smell, quality, benefit, risk of injury 96
Customer opinions, reviews, product promises, price-performance 88.67
Total points according to QS standard 90.72
100 points maximum score

Points system

score Note
96-100 1
94-95 1.1
92-93 1.2
90-91 1.3
88-89 1.4
86-87 1.5
... ...