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0-14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa (pH Electrode) auspowers_batchtwo Quick clear - If staple0 14 pH Electrode Probe BNC Connector, 300cm Cable for PH Meter Monitor Controller Test Sensor, Replacement Kit for Aquarium Hydroponics Plant Pool Spa (pH Electrode) Features 300 CM Long Replaceable pH electrode is easy to calibrateReplacement kit set that comes with a set of free calibration powderProvides instant measurement & simple operationEasy monitoring of pH accuratelyComes with protective cap to ensure the safety of the bulbWith Automatic