2X Orp Electrode Probe Test Aquarium Hydroponic Laboratory Electrode Measuring The Redox Potential Bnc Q9 Connector 4713620854620

2X Orp Electrode Probe Test Aquarium Hydroponic Laboratory Electrode Measuring The Redox Potential Bnc Q9 Connector 4713620854620

The combined electrode is composed of platinum needle indicating electrode and silver-chlorinated silver reference electrode. It is the measuring...

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