DUOTEST pH 7.0 - 10.0 (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: 7.0 - 7.3 - 7.6 - 7.9 - 8.2 - 8.5 - 8.8 - 9.1 - 9.4 - 9.7 - 10.0