Quickly, simply, accurately and economically measure free fluoride ions in aqueous solutions with the combination Thermo Scientific™ Orion™ Fluoride Electrodes.

Use the Thermo Scientific™ Orion™ Star Stirrer Probe with Orion™ benchtop meters to stir solutions for better accuracy without the difficulty of using a stir plate and bar

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

Measure both pH and temperature in samples with the Thermo Scientific™ Orion™ ROSS Ultra™ Low Maintenance pH/ATC Triode™ Combination Electrodes.

Restore proper electrode performance and prolong electrode life using Thermo Scientific™ Orion™ pH Electrode Cleaning and Storage Solutions.

Virtually eliminate fringe field interference errors with the Thermo Scientific™ Orion™ DuraProbe™ 4-Electrode Conductivity Cells.

Use the Thermo Scientific™ Orion™ Conductivity Resistor Kit to verify the performance of Versa Star and Star A series conductivity meters with 8 pin MiniDIN connectors

Operate the highly-versatile Thermo Scientific™ Orion™ 9107BN Triode™ 3-in-1 pH/Automatic Temperature Compensation Probe in either the field or a plant.

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

Select replacement parts for the Thermo Scientific™ Orion™ Star Series Inkjet Printer, including printer paper and ink cartridge

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

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

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

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.

Perform applications in either the lab or the field with these versatile 2-electrode conductivity cells, available in a variety of materials and measurement ranges.

Use Thermo Scientific™ Orion™ pH Electrode Filling Solution with pH electrodes and reference electrodes.

Obtain a more linear response at lower levels and improved response time in ammonia measurements with the Thermo Scientific™ Orion™ High-Performance Ammonia Electrode.

Measure dissolved oxygen levels without the difficulties of membrane replacement by using the Thermo Scientific™ Orion™ RDO™ Dissolved Oxygen Probe.

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

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

Save time by eliminating additional equipment set-up, titrations and calculations with this total alkalinity test kit that provides two-step direct measurement.

Keep your Thermo Scientific™ Orion™ Chlorine XP chlorine analyzer well supplied with the reagents it needs for Free Chlorine and Total Chlorine measurement (DPD method).

Measure free chloride in the range of 1 x 10^-5M to 1M with the Thermo Scientific™ Orion™ Chloride Electrodes.

Measure pH by piercing septa with the Thermo Scientific™ Orion™ 9863BN Micro pH Electrode, a bevel needle-tipped 16-gauge glass body combination electrode.

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

Use the probe optical cap replacement with RDO probes.

Measure sodium in aqueous solution quickly, accurately and economically with Thermo Scientific™ Orion™ Sodium Electrodes.