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Amazon.com: Milwaukee Instruments pH/Temperature Laboratory Bench Meter Tester MI150-US : Industrial & Scientific
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Milwaukee Instruments MW102 PH and Temperature Meter
Replacement pH Electrode Long Cable 0-14pH Probe Test Water Liquid Ocean Sea Water Acid Rain with Glass Bulb (200cm ph Electrode): Amazon.com: Industrial & Scientific
Ohaus ST20 pH Pen Meter, Waterproof, 0.01 pH: Amazon.com: Industrial & Scientific
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pH Meter, Dr.meter Upgraded 0.01 Resolution High Accuracy PH Tester with Backlit Two-Color LCD Display and ATC, 0-14pH Measurement Range with Data Hold Function Digital pH Tester Pen-PH838: Amazon.com: Industrial & Scientific
