MACHEREY-NAGEL Indicator Strips Pehanon Ph 4.0-9.0 11 X 100mm, 2 X 200 Items MANA90424

Macherey Nagel - PEHANON, pH determination in colored solutions
pH 4.0–9.0, 200 test strips in a plastic box

PEHANON test strips unify pH indicator and reference color chart on one strip. Any sample color has the same effect on both, the reference colors and the reactive pad, allowing unadulterated pH reading even in colored solutions.