DUOTEST pH 9.5 - 14.0 (Per reel of 5m length and 10mm width)

• Shows two different colors for each pH-value at intervals of 0.3 to 1 pH-unit

• More accurate reading and good estimation of intermediate values

• pH gradation: 9.5 - 10.0 - 10.5 - 11.0 - 11.5 - 12.0 - 12.5 - 13.0 - 13.5 - 14.0