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The Ultrapure Water Quality Analyzer that started it all.  The Martek Mark 20 Ultrapure Water Monitor provides laboratory accuracy in a multi-chann...

The Mark 22 is the easiest way to measure conductivity and pH for ultrapure water processes in one portable package. Also known as the Mark 22 Cali...

The Martek Mark 25 Ultrapure Water Conductivity Analyzer, also known as the "Martek Miracle Worker", is a highly accurate, simple-to-use monitoring...

If you were to take the most popular sodium analyzer on the planet, place it in a small, light-weight panel, what would you have? The best function...

When you need four cation conductivity sample points and need them in a small, value-packed panel, what do you do? Look no further, you’re here! Th...

With three conductivity measurements (specific, cation, degassed) in a small, light-weight panel, the Degas Cation Conductivity System quickly det...

When all you need is a highly efficient degassing system to add to your existing cation conductivity reading, this is the best ticket in town. The ...

Martek sensors are built to the most exacting standards.  Each sensor comes complete with its own integrated flow cell, DB25 connector, and 9 feet ...

Martek sensors are built to the most exacting standards. Each sensor comes complete with its own electronic circuitry secured in a separate NEMA 4X...

Flow chamber with mounting bracket. Flow chamber is also available in acrylic. Please choose from the drop down menu above. p/n 180-51 - Stainless ...

pH adapter plug for use with the flow chamber. p/n 180-51A

When you need to protect the best, get the best. Our carrying case secures on all four sides, locks, and includes a pluck-foam lining.  For use wi...

Combination glass electrode with double junction reference. Non-refillable. We recommend replacing the pH sensor every six to twelve months. p/n 18...

Easy calibrate your Mark 22 portable water quality analyzer with the calibration cable.  p/n 603051 ORDERING INFORMATION Part Number Des...

Calibrating your Mark 22 portable water quality analyzer has never been this easy. Certified calibration plugs eliminate the need for messy, unreli...

Powering your portable water quality analyzer has never been this easy. Our 6V battery charger ensures you get highly accurate and reliable outputs...

For use with the Mark 22 Portable Analyzer. p/n 603106

Optimize your laboratory operations with Martek's Cation Resin Refill. Its visual indicator, sustainable design, and consistent performance make it...

With two channel capability to tell you if your system is making lemonade out of lemons…or something more “basic,” the Mark 25 pH/ORP is the answer...

Want or need to accessorize your ion chromatograph? Or simply need to eliminate interfering organics? Try this device on for size.  The ICOD includ...

The most focused and accurate water quality analysis tool on the market. For accurate, continuous, in-situ monitoring of ultrapure water quality pa...

Glass Helix for use with the ICOD.   p/n 950669

UV Lamp for use with the ICOD (Ion Chromatography Oxidation Device.)  NOTE: UV Lamp warrantied for 12 months or 5000 hours.  p/n 121088

While most ultrapure water applications utilize a flow-through style conductivity sensor, there are occasions when a sensor needs to be inserted di...