TRIS compatible, rugged, and convenient

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

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

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

For single-junction Ag/AgCl electrodes, Calcium Combination ISEs, inner chamber of many double-junction electrodes

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

Use NIST-traceable reference materials for the highest accuracy available. Traceable™ Conductivity Calibration Standards Certified Reference Material (CRM) offer easy calibration with included instructions and temperature chart.

Perform accurate, reproducible pH calibrations with color-coded Thermo Scientific™ Orion™ pH Buffer Bottles.

For routine pH and titration measurements with small samples and small vessels, where separate half-cell electrodes may be impractical

Single-junction models with Ag/AgCl reference element

Rugged polymer construction for handheld use with aqueous samples in the classroom or in the field

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

The Thermo Scienitfic™ Orion Model 91-72 Sure-Flow pH Electrode is a chemical resistant glass body combination electrode for clog-free measurements of soil, sludge, colloids, and viscous material.

Use the probe optical cap replacement with RDO probes.

Maintain pH electrodes more effectively with Thermo Scientific™ Orion™ ROSS™ All-in-One™ pH Buffer Kits.

Ideal for meaurement in thick or viscous samples, but compatible with all sample types. 

Eliminates impurities and residues that are left on electrode surfaces when immersed in samples during measurement or when stored incorrectly. Hanna Instruments™ pH Electrode Cleaning Solution dissolves any mineral deposits or other coatings by soaking up to 20 minutes.

Combination electrode with built-in ATC probe

Used with AB15+ and AB15 kit for routine pH and titration measurements of aqueous solutions with small samples, small vessels.

Ideal for storing conductivity probes.

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

Ideal for measurements in small vessels or with small samples

Large junction for increased flow, minimal clogging

Dual junctions provide fast response and long life in paper pulp testing

Eliminates impurities and residues that are left on electrode surfaces when immersed in samples during measurement or when stored incorrectly. Hanna Instruments™ pH Electrode Cleaning Solution dissolves any mineral deposits or other coatings by soaking up to 20 minutes.