Take more accurate and reproducible ISE measurements with Thermo Scientific™ Orion™ ISE Ionic Strength Adjustors (ISA) and Special Reagents.

Operate the highly-versatile 3-in-1 pH/automatic Ttemperature compensation probe in either the field or a plant.

Restore proper electrode performance and prolong electrode life using these pH electrode cleaning solutions.

Virtually eliminate fringe field interference errors with our 4-electrode conductivity cells, which are extremely accurate under a wide range of conditions.

Measure general pH samples as well as viscous or colloidal samples with the Thermo Scientific™ Orion™ 8172BNWP ROSS™ Sure-Flow™ pH Electrode.

Measure micro volume samples with this refillable, glass double junction electrode.

Restore proper electrode performance and prolong electrode life using these pH electrode storage solutions.

Conduct end point detection in titrations of anionic or cationic surfactants in a solution with the Thermo Scientific™ Orion™ Surfactant Half-Cell.

Use this stirrer probe with our benchtop meters to stir solutions for better accuracy without the difficulty of using a stir plate and bar.

Universal glass membrane and glass body provides measurements from zero to 14pH

Simple “Plug and Stir” technology for accumet XL and AB series meters

Measure both pH and temperature in samples with these low maintenance, pH/ATC combination electrodes.

A selection of conductivity probes suitable for all applications.

Quickly, simply, accurately and economically measure free fluoride ions in aqueous solutions with these fluoride electrodes.

Add conductivity, TDS, salinity, resistivity and temperature measurement capabilities to your Versa Star meter using the Thermo Scientific™ Orion™ Versa Star Conductivity Module

A selection of dissolved oxygen probes suitable for all applications.

Perform virtually any electrochemistry analysis with these conductivity standards, solutions and accessories.

Fill electrodes with correct, fresh electrolytes for a precise measurement

Orion Star A series compact ink ribbon printer 100-240V, includes printer, one ink ribbon, one paper roll, meter interface cable and power cords (110V US/Japan, 220V Euro, 240V UK/Singapore and China/Australia/New Zealand)

Perform ISE determinations with the Thermo Scientific™ Orion™ 900200 Sure-Flow™ Reference Half-Cell Electrode, a double junction reference electrode.

For calomel single-junction electrodes; outer chamber of Ag/AgCl double-junction electrodes; Fluoride, Sodium Combination ISEs, accupHast and accuTupH electrode outer chambers.

Ideal for storing conductivity probes.

Automatically correct pH measurements for variation in electrode slope due to temperature change.

Use this pH electrode filling solution with pH electrodes and reference electrodes.

Measure biological media, pharmaceuticals, foods and more with Thermo Scientific™ Orion™ ROSS Ultra™ Refillable pH/ATC Triode™ Combination Electrodes.

Precisely measure with ion-selective electrodes using this sleeve-type Ag/AgCl reference electrode.

Quick and easy determination of concentration and activity of ammonia.

Measure pH as low as 0.5μL samples in gels or micro containers with this small-tipped glass combination electrode for pH measurements in micro volume samples.

Use the probe optical cap replacement with RDO probes.