Shop All pH Electrodes

Orion™ Model 91-72 Sure-Flow pH Electrode (Thermo Scientific™)

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.

Orion™ 8103BN ROSS™ Combination Semi-micro pH Electrode (Thermo Scientific™)

Receive stable readings to 0.01 pH in less than 30 seconds with the Thermo Scientific™ Orion™ 8103BN ROSS™ Combination Semi-micro pH Electrode.

Orion™ 9810BN Micro pH Electrode (Thermo Scientific™)

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.

Orion™ 900100 Sure-Flow™ Reference Half-Cell Electrode (Thermo Scientific™)

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

Orion™ 8135BN ROSS™ Combination Flat Surface pH Electrode (Thermo Scientific™)

Stable readings to 0.01 pH in less than 30 seconds.

Orion™ 9107BN Triode™ 3-in-1 pH/Automatic Temperature Compensation Probe (Thermo Scientific™)

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

Orion™ ROSS Ultra™ Glass Triode™ pH/ATC Combination Electrodes (Thermo Scientific™)

No more waiting for pH readings to stabilize when measuring samples of varying temperatures.

Orion™ 8115BNUWP ROSS Ultra™ Electrode (Thermo Scientific™)

Measure pH in micro volume aqueous solutions with the durable Thermo Scientific™ Orion™ 8115BNUWP ROSS Ultra™ Electrode.

Orion™ 9863BN Micro pH Electrode (Thermo Scientific™)

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

Orion™ AquaPro™ pH Combination Electrodes (Thermo Scientific™)

Read viscous liquid samples quickly and accurately without the sample coming into contact with silver ions by using these pH combination electrodes.

Orion™ 8103BNUWP ROSS Ultra™ pH Electrode (Thermo Scientific™)

Obtain precise pH determinations in micro volume samples with this general purpose, semi-micro tipped combination electrode with top-performance glass body.

Orion™ ROSS™ Sure-Flow™ pH Electrode with Sure-flow junction, BNC connector (Thermo Scientific™)

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

Large O-ring for Eutech™ ECDOGEN-S and ECDOTPII-S Dissolved Oxygen Electrodes (Thermo Scientific™)

Thermo Scientific™ offers Large O-ring replacement parts for ECDOGEN-S and ECDOTPII-S Dissolved Oxygen Electrodes.

Orion™ Triode™ 3-in-1 pH/ATC Probe (Thermo Scientific™)

Operate this highly-versatile probe in either the field or a plant.

Orion™ Stainless-Steel Automatic Temperature Compensation (ATC) Probes (Thermo Scientific™)

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