Neptune Systems
Neptune Systems Lab Grade Double Junction pH Probe
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Neptune Lab Grade Double Junction pH Probe
Price: $74.99
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pH Probe – Lab Grade Double Junction
Start monitoring pH, replace your pH probe or add one for another tank
Neptune's Double Junction pH Probe is compatible with any monitor or controller with a BNC style connection. If you just need to replace your worn out probe or add another you will not be disappointed with the double junction feature of these probes. Most probes have a single chamber to house the actual reference probe and fluid that can become contaminated quickly throwing off readings and requiring calibration quite often. The double junction probes have two chambers that keeps any contaminants that could possibly react with and clog the actual sensing portion of the probe.
Lab Grade Probes tend to last longer, give more accurate results, stay calibrated longer, and need replaced less frequently
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 calibrations.
Double junction probes place a second vessel inside the main electrolyte with a second internal junction. The means that even when the aquarium water eventually begins to make its way in the first compartment, it still has to go through the second junction to contaminate the electrolyte surrounding the reference electrode.
