Use the test4aqua app together with the test4aqua products! test4aqua is the Do-it-yourself interim water quality check – for all your aquariums, garden ponds, pools and water. For a fast check of 7 parameters: nitrate, nitrite, free chlorine, total chlorine, pH number, total hardness and carbonate hardness.
The app offers automatic colour comparison, detailed evaluation, time series, additional information and own profiles with photo.

test4aqua is for all your aquariums and freshwater garden ponds, private baths, swimming pools, whirlpools and household water (e.g. from wells). Simple, fast and hygienic.

Aquarium and freshwater garden ponds:
Not all water is the same. To give fish the most natural environment possible, the quality of the water in an aquarium or garden pond is very important. Different parameters must therefore be checked regularly to insure consistently good water quality. test4aqua products and apps keep you up-to-date on water quality and makes daily life easier. Aquaria experts recommend a weekly or monthly check.

Pools, swimming pools and whirlpools:
Demands differ greatly on water in private indoor and outdoor pools. A regular check on water quality and treatment in public baths is governed i.e. in Germany by DIN standard 19643. Regular analyses of water used in the private sector supports carefree swimming. test4aqua keeps you up-to-date on water quality and makes daily life easier. Pool experts recommend a weekly check of regular used pools.

Water, e.g. from wells:
Water is used in a variety of ways at home, for cooking, drinking, washing and much more. This means the quality of the water is important regardless of whether you obtain your household water from the local water company or from your own well. test4aqua keeps you informed about water quality and makes daily life easier.

Not only can the test4aqua app talk to you and is therefore accessible. Most of all it offers many additional advantages when using test4aqua:

Automatic colour comparison
Detailed evaluation and additional information
Readings given in absolute figures and degree of concentration
Historic development of individual tests through time series
Suitable for all for all aquariums and garden ponds with fresh water, private swimming pools and whirlpools and for household water, for example from wells.
Additional info such as volume, location or photo can be collected
App saves time

System prerequisites on your smartphone:
Android starting with Version 4.1
Integrated camera

The test4aqua app is especially designed for usage together with the test4aqua products. test4aqua products are available at your specialist retailer.
Apropos – in addition to test4aqua there is also the Do-it-yourself health check – for dogs and horses!

More information at
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What's New

Deutsch und Englisch
Mit automatischer Erinnerungsfunktion
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Additional Information

July 14, 2016
Current Version
Requires Android
4.1 and up
Content Rating
Offered By
Wertschmied Group GmbH
Postfach 2325 D-96014 Bamberg
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