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The chloride (Cl-) ion is a component of salt found natuarally in minerals and oceans. Chloride salts are typically soluble in water, and high concentrations of chloride in water bodies can negatively impact fish and aquatic communities.

Examples of chemical compounds that include Chloride - individual Cl- ion, Sodium Chloride Crystal (NaCl, top) and Potassium Chloride (KCl, bottom). Public Domain.
Examples of chemical compounds that include Chloride - individual Cl- ion, Sodium Chloride Crystal (NaCl, top) and Potassium Chloride (KCl, bottom). Public Domain.Examples of chemical compounds that include Chloride - individual Cl- ion, Sodium Chloride Crystal (NaCl, top) and Potassium Chloride (KCl, bottom). Public Domain. YSI 6-Series Chloride ISE Sensor.YSI 6-Series Chloride ISE Sensor.


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YSI has Authorized Distributors all over the globe. View a map and find your closest contact for YSI Chloride products and accessories.

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Have a question about your YSI Chloride product? Check out the support page with resources compiled just for you.

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Want to return a product for service? Here you’ll find authorized service centers and instructions on how to send in your YSI Chloride product.

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The sonde chloride probe employs a solid state membrane attached to a conductive wire. When the probe is immersed in water, a potential is established across the membrane that depends on the amount of chloride in the medium.

YSI 6600V2 Comprehensive Monitoring System - View of Sensor Configuration


Make the most of your environmental monitoring.


The YSI 6600 V2 data sonde is the most comprehensive water quality monitoring equipment available with simultaneous measurement of conductivity (salinity), temperature, depth or level, pH/ORP plus...


YSI 6920 V2-2 sensor view showing Temperature/Conductivity, Chloride, pH, as well as Optical DO and Turbidity.

6920 V2

Compact Data Sonde for Unattended Monitoring


The YSI 6920 V2 sonde is an economical water quality logging system, ideal for long-term in situ monitoring and profiling.

Real-time turbidity monitoring, dissolved oxygen monitoring, algae monitoring, and more.


YSI 6820 V2 showing sensors, starting clockwise from top: ROX Optical Dissolved Oxygen, Turbidity, pH, ISE, and temperature/condutivity.

6820 V2

Compact Sonde for Field Sampling


The YSI 6820 V2 is a cost-effective data sonde for profiling and spot-checking water quality in rivers, lakes, wetlands, wells, estuaries, and coastal waters.


    YSI Professional Plus Shown with Single Parameter Cable and Probe Assembly

    Professional Plus

    Handheld Multiparameter Instrument


    The YSI Professional Plus handheld multiparameter meter provides extreme flexibility for the measurement of a variety of combinations for dissolved oxygen, conductivity, specific conductance, salinity, resistivity, total dissolved solids (TDS), pH, ORP, pH/ORP combination, ammonium (ammonia), nitrate, chloride and temperature. Also a very powerful lab instrument for BODs, pH and ORP.


    YSI chloride, ammonium, and nitrate sensors

    6882, 6883, 6884 Nutrient Ion-Selective-Electrode Sensors (6-Series)

    Measure Nutrient Data with Nitrate, Ammonium, and Chloride with Ion Selective Electrodes


    YSI Laboratory ISE Product Family

    Laboratory ISE Electrodes

    Wide selection of 15 electrodes for laboratory ISE measurements.


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