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" in PH Meters found 3 Products from Shanghai Longway Optical Instruments Co., Ltd., China

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HANNA HI98107 PHS-98107 Tester Family Pen PH Meters: 14kg/carton Operation: • Remove the protective cap. Don't be worry if white crystals appear around the probe head. This is normal with pH electrodes and they dissolve when rinsed with ...

PHS-98108 HANNA HI98108 Tester Family ATC Pen PH Meter: calibration, dry electrode or rundown batteries. CALIBRATION • Immerse the tester up to the maximum immersion level in pH 6.86 buffer solution • Allow the reading to stabilize and using a ...

PH-981 High Precision Pen PH Meters: calibration, dry electrode or rundown batteries. CALIBRATION • Immerse the tester up to the maximum immersion level in pH 6.86 buffer solution • Allow the reading to stabilize and using a ...

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HANNA HI98107 PHS-98107 Tester Family Pen PH Meters