The Dennerle Crabo Test Precision is a long term test for continuous and direct CO2 measurement in the aquarium. The Dennerle long-term tests are available in three different sizes and are made of high-quality crystal glass. The white inner tube allows the colour of the indicator liquid to be seen at a glance, regardless of the background.
Dennerle Carbo Test Indicator as refill for the Dennerle Carbo Test Precision long-term CO2 test. Also suitable for all other long-term CO2 tests. Iincludes additionally a colour comparison scale for pH measurement..
The Dennerle CO2 Long-Term Test Correct + pH enables the continuous, direct measuring of the CO2 contenct of the aquarium water. Conventional long-term CO2 tests are filled with a mixture of aquarium water and drop indicator. In contrast, the Dennerle CO2 long-term test Correct + pH employs a high-purity, ready-to-use ampoule indicator which has been developed especially by Dennerle.
