Neptune Double Junction Lab Grade pH Probe

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Description

Neptune Double Junction Lab Grade pH ProbeThe pH and ORP probes are now double junction as well so they hold calibration longer and have a longer lifespan than single junction probes. What's the difference between double junction and single junction probes? Single junction probes put the reference electrode in direct contact with aquarium water. Over time, the junction will slowly leak aquarium water into the electrolyte which changes the accuracy of the probe and requires more frequent

5in x 11in

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Power supply

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free of additives

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