Digital Ph Meter
11,000 Per Piece
1 Piece (MOQ)
pH Meter
1,500 Per Piece
1 Piece (MOQ)
pH meter, electric device used to measure hydrogen-ion activity (acidity or alkalinity) in solution. Fundamentally, a pH meter consists of a voltmeter attached to a pH-responsive electrode and a reference (unvarying) electrode. ... When the two electrodes are immersed in a solution, they act as a battery.
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ph indicators
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Laboratory Chemical, Organic Chemical, stains, laboratory instrument
pH Meter
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pH Meter, Water Meter, Energy Meter, Flow Meter, scientific instrument