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Reand 1149
pH test paper Duotest pH 1–12, with two indicator zones
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Reand 1245
pH test paper Duotest pH 1.0–4.3, with two indicator zones
Reand 1116
pH test paper Duotest pH 3.5–6.8, with two indicator zones
Reand 1144
pH test paper Duotest pH 5.0–8.0, with two indicator zones
Reand 1233
pH test paper Duotest pH 7.0–10.0, with two indicator zones
Reand 1205
pH test paper Duotest pH 9.5–14.0, with two indicator zones