6580 pH Reference Electrode

6-Series Legacy Sondes

View YSI 6-Series water quality sondes being used in a variety of water environments for long-term underwater monitoring and spot sampling.

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Simple, accurate pH measurement in sensors designed for minimal maintenance in sampling, profiling, and long-term monitoring applications.

This reference electrode must be installed into a 600R and 600QS sondes to function. Does not function on its own.

  • Overview

    YSI pH and pH/ORP sensors have been carefully designed to perform under all ionic strength conditions, from seawater with a conductivity of 53,000 μS/cm, to "average" freshwater lakes and rivers with conductivities of 200 to 1500 μS/cm, to pure mountain streams with conductivities as low as 15 μS/cm, which has historically been the most difficult medium with respect to accuracy, quick response to pH changes, and minimal flow dependence.

    6580 pH Reference Electrode:
    The YSI 6580 pH Reference Electrode is a user-replaceable pH reference electrode for use with YSI 600R and 600QS multi-parameter water quality sondes. Extends the life of the integrated pH sensor.


    • Offers threaded connection to instrument
    • Extends the life of 6581 pH sensor 

    Sensor is available for use on the following sonde:

    • 600R and 600QS

  • Specifications
    Depth / Pressure Rating / Limit 60 m
    Equipment used with 600R, 600QS
    Medium Fresh and Salt Water
    Monitoring Yes
    Parameters Measured pH
    Sampling Yes
    User Calibratable Yes
    User Replaceable Yes
    Warranty 1 year

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