VISOCOLOR® ECO Test pH 4.0–9.0

A standalone test kit for the chemical analysis of water samples that needs no additional apparatus or prior chemistry knowledge. The colour templates on the VISOCOLOR® card are matched to the colours of freshly prepared standard solutions, giving fine resolution, precision and reproducible results. It determines pH in graded steps from 4.0 to 9.0 and provides enough reagents for 450 tests. Instructions are included in six languages.