 | Hach CEL/890 Professional Water Treatment Laboratory This laboratory covers parameters critical to effective boiler/cooling water treatment and corrosion prevention. | 
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 | Hach CEL/890 Advanced Drinking Water Laboratory This laboratory provides complete instrumentation and tests that cover every major drinking water parameter. | 
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 | Hach CEL/890 Advanced Portable Laboratory The versatile CEL/890 Advanced Portable Laboratory will meet your most demanding needs. | 
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 | YSI 556-02 Multi-Parameter Display The YSI 556-02 multi-parameter display features an internal barometer, making dissolved oxygen calibrations quick and easy. | 
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 | YSI 556-01 Multi-Parameter Display The YSI 556-01 multi-parameter display provides a user-friendly interface for obtaining high accuracy water quality measurements. | 
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 | YSI 3200 Benchtop Conductivity Meter The 3200 features Resistance-Ratio technology, data logging, and auto temperature compensation. | 
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 | Solinst 100' Model 107 TLC Meter The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. | 
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 | YSI 85-10 Dissolved Oxygen & Conductivity Meter The YSI Model 85-10 Handheld Dissolved Oxygen, Conductivity, Salinity, and Temperature System features an integral 10' cable assembly with probe. | 
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 | YSI 63-10 pH & Conductivity Meter The YSI Model 63-10 Handheld pH, Conductivity, Salinity and Temperature System features an integral 10' cable assembly with probe. | 
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 | YSI Pro Plus Multi-parameter Display The YSI Pro Plus multi-parameter display provides a graphical interface for obtaining high accuracy water quality measurements. | 
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 | YSI 3100 Benchtop Conductivity Meter The YSI 3100 instrument features conductivity, salinity, and temperature for the laboratory. | 
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 | YSI 30-10 Conductivity Meter The YSI Model 30-10 Handheld Conductivity, Salinity, and Temperature System features an integral 10' cable assembly with probe. | 
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 | YSI EC300 Display The EC300 display can be used with 4m and 10m cable & probe assemblies, providing cost effective conductivity measurements. | 
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 | YSI 600R Multi-Parameter Water Quality Sonde The YSI 063625 Water Quality Sonde includes a temperature/conductivity sensor for surface water and groundwater applications. | 
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 | YSI 600XL Multi-Parameter Water Quality Sonde The YSI 065862 Water Quality Sonde is designed for use with the 6562 Rapid Pulse polarographic DO probe. | 
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 | YSI 6820/6920 V2 Sonde Upgrade Take advantage of YSI's new optical sensor design with Fondriest's factory-authorized V2 sonde upgrades. | 
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 | YSI 600OMS V2 Optical Monitoring System The 600-01 Water Quality Sonde is designed for use with any single YSI optical sensor. | 
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 | YSI 600QS Quick Sample System System features a YSI 600QS Sonde with temperature/conductivity, pH & dissolved oxygen sensors, 25' field cable, and 650-01 multi-parameter display. | 
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 | YSI 600XLM Multi-Parameter Water Quality Sonde The YSI 603-000 Water Quality Sonde is designed for use with the 6562 Rapid Pulse polarographic DO probe. | 
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 | YSI 6600 V2-2 Multi-Parameter Water Quality Sonde The YSI 6600-00 Water Quality Sonde is designed for use with the 6562 Rapid Pulse polarographic DO probe. | 
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 | YSI 6600EDS V2 Extended Deployment System The 6600E-00 Water Quality Sonde is designed for extended deployments in severe fouling environments. | 
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 | YSI 6820 V2-1 Multi-Parameter Water Quality Sonde The 6820-03 sonde is designed for use with the 6562 Rapid Pulse polarographic DO probe. | 
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 | YSI 6920 V2-1 Multi-Parameter Water Quality Sonde The 6920-40 sonde is designed for use with the 6562 Rapid Pulse polarographic DO probe. | 
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 | YSI 600XLM V2 Multi-Parameter Water Quality Sonde The YSI 603V2-000 Water Quality Sonde is designed for use with the 6150 ROX Optical DO probe. | 
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 | YSI 600XL V2 Multi-Parameter Water Quality Sonde The YSI 065862V2 Water Quality Sonde is designed for use with the 6150 ROX Optical DO probe. | 
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 | ATI Q45C4 4-Electrode Conductivity Monitor The Q45C4 4-Electrode Conductivity Monitor is the accurate and reliable solution for monitoring almost any water-based process. | 
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 | ATI Q45C2 2-Electrode Conductivity Monitor ATI's Model Q45C2 Conductivity Monitor provides the reliable and accurate low-level measurements required for high purity water systems. | 
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 | ATI Q45CT Toroidal Conductivity Monitor ATI's Model Q45CT toroidal conductivity system is designed for online monitoring of chemically aggressive process solutions. | 
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