YSI Products Catalog

YSI Instruments

Welcome to the section of Equipco’s website dedicated entirely to water quality instruments manufactured by YSI. From the incredibly popular YSI-556 multiparameter water quality meter to laboratory dissolved oxygen instruments, you will find all of the instruments you need to gather your critical field or laboratory data right here at the best prices.

Featured Products

YSI Level Scout

Level/Temp/Pressure

YSI’s new Level Scout product provides level and temperature measurements in a rugged, submersible instrument.

YSI ProODO

Handheld Optical DO

The YSI ProODO provides extreme durability for the measurement of optical based dissolved oxygen for any field application. Shipments will take place December 2008.

YSI Pro20

Handheld DO/Temp

The Pro20 provides everything you need in a handheld dissolved oxygen meter. Ruggedness and simplicity are cornerstones of the instrument’s design.

YSI Professional Plus

Handheld Multiparameter

The YSI Professional Plus provides flexibility of measuring dissolved oxygen, conductivity, specific conductance, salinity, resistivity, temperature and much more.

Products and Categories

Multiparameter Instruments

Rugged, reliable and waterproof, the YSI 556 MPS (Multiprobe System) combines the versatility of an easy-to-use, easy-to-read handheld unit with all the functionality of a multiparameter system. The YSI 556 MPS simultaneously measures dissolved oxygen, pH, conductivity, temperature, and ORP.

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EcoSense Handhelds

Purchase YSI EcoSense Handhelds here at Equipco. Available EcoSense products include the EC300 Handheld Conductivity Instrument, the D0200 Dissolved Oxygen Meter, the PH100 Handheld pH or mV Instrument, the PH10 Pen-style pH Tester Instrument, and the ORP15 Pen-Style ORP Instrument.

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Handheld Instruments

Purchase YSI Handheld Instruments here at Equipco. Available handheld instruments include the YSI 55 Dissolved Oxygen; 550A Dissolved Oxygen; 30 Salinity, Conductivity, Temperature; 85 Dissolved Oxygen, Salinity, Conductivity, Temperature; 60 pH, Temperature; and 63 pH, Conductivity, Temperature.

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DO Classics (Dissolved Oxygen)

The YSI 52 features an easy-to-read LCD provides clear, simultaneous display of time, temperature, % saturation and mg/L oxygen. The YSI 58 DO Meter displays oxygen concentrations in temperature-compensated modes.

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DO Lab (Dissolved Oxygen)

YSI engineered the YSI 5000 Series to meet the expanding needs of laboratory instruments. These dissolved oxygen instruments feature: auto-calibration, large, graphic displays and low keypad profiles for maximum efficiency.

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Conductivity Lab

The YSI 3100 provides accuracy and reliability in measuring conductivity, salinity and temperature. The YSI 3200 offers unmatched accuracy for ultrapure water analysis, multipoint calibration, and a high/low alarm for process applications.

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