Water Quality Testing

The OxyGuard Handy Polaris is a portable D.O. meter that also measures % saturation, mg/L (ppm), temperature and has salinity compensation. Measure...

The OxyGuard Handy Polaris 2 is a portable dissolved oxygen (D.O.) meter that combines the features of the original Polaris with the convenience of...

To ensure quality, YSI inspects conductivity solutions with reference to primary standard solutions according to OIML recommendation 56. Bottles in...

The OxyGuard Handy Polaris TGP (Total Gas Pressure) Meter is a hand-held gas pressure meter that doubles as a dissolved oxygen meter. It can operat...

Membrane Kit with O-Rings Membrane Kit with O-Rings

The 60520 is a 1-port cable for use with the Professional Plus or Pro20 instrument. The port requires a DO probe. Galvanic DO Sensor for YSI Pro 20...

Compartments will hold the instrument, cables, flow cells, cable weights, probe guards, extra probes, membranes, and much more! Straps can be adjus...

The ODO has all the advantages of optical dissolved oxygen technology – higher accuracy, less maintenance, no stirring required for accurate measur...

YSI’s line of Professional Series instruments includes several handhelds for the use in the laboratory or the field. After determining your applica...

An evolution of the Professional Series water quality meters, the ProSolo DIGITAL handheld replaces the ProODO as YSI’s most advanced optical disso...

Case dimensions measure 12x12x3 (inches). The case includes a hand strap and an over-the-shoulder carrying strap. Internal pockets include one for ...

Replacement probe guard for YSI Pro series instruments.

Includes screw-on sensor cap and calibration code sequence. Average life 1 -year or greater. Response Time (T95 – from 0 to 100%) = 40 seconds Flow...

Replacement ProDSS ODO/CT ODO extended warranty sensor cap featuring a 2 year warranty.  This item comes preinstalled on ODO/CT assemblies.

Includes screw-on sensor cap and calibration code sequence. Average life is 1 year or greater. Response Time (T95 - from 0 to 100%) = 40 seconds Fl...

YSI ODO technology reduces the time required calibrating and maintaining sensors while utilising a user replaceable sensing element that requires a...

Easily manage your longer cables. Automatically included with Pro Series cables 4-meters and longer. Also attaches to the back of the instrument to...

Includes bottle of electrolyte, 1 sanding disc and 6 screw-on cap membranes. 1.25 Mil PE membranes. Yellow cap. Response Time (T95 - from 0 to 100%...

The Handy Salinity is a hand-held instrument specially designed for aquaculture use. Factory calibration and automatic temperature compensation mak...

The OxyGuard Handy pH is a hand-held, pocket size pH or Redox meter designed for use in demanding, wet environments. The meter itself and the elect...

The OxyGuard Handy pH is a hand-held, pocket size pH or Redox meter designed for use in demanding, wet environments. The meter itself and the elect...

The Handy Atmosphere is a hand-held meter designed to measure oxygen in gas. It can be used to measure the low oxygen content of packaging gas, the...

Replacement electrode for Oxyguard Handy pH Meter.