Yellow Springs Instrument (YSI)

YSI™ Pro20 BOD Lab Kit

Pro20 BOD Lab Kit includes everything from lab to field (or both) along with a probe. Pro20 DO Meter is a tough, smart, versatile and portable dissolved oxygen meter for the lab or field!

YSI™ Portable Photometers

Portable photometers, allow easy readings directly in the field for 100+ parameters

YSI™ Dip-Type Plastic Conductivity Cells

YSI dip-type ABS-plastic conductivity cell for use with YSI conductivity meters (sold separately).

YSI™ EcoSense 9300 Benchtop Photometer

Portable photometers allow to easily take readings directly in the field for 100+ parameters.

YSI™ Pro20 BOD Kit (International)

Includes everything from lab to field along with ProBOD self-stirring BOD probe.

YSI™ USB Power Supply Unit for Photometry

For use with 9500 photometer.

YSI™ Colorimeter Reagents - Chlorine

Chlorine reagents for various colorimeters

YSI™ Pro20 Polarographic DO Lab/Field 4m Kit

Includes everything from lab to field along with ProBOD self-stirring BOD probe.

YSI™ 60520 Pro Series DO Cable

Compatible with the YSI Pro Plus or Pro20 handhelds

YSI™ Plastic Tweezers

Accessory for the Model 9000 and 9100 series portable photometers

YSI™ pH Probes for Pro Series Portable Meters

Choose from lab-grade and field models.

YSI™ 60510 Pro Series ISE Cable

The 60510 is a 1-port cable for use with the Professional Plus instrument. The port requires a ISE probe.

YSI™ Truline Bromide Electrode Kit

Solid state technology.

YSI™ Conductivity Calibration Standards

NIST-traceable conductivity solutions to calibrate both field instruments and lab instruments and cells together for maximum accuracy

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