Shop All Dissolved Oxygen Meters

Orion Star™ A123 Dissolved Oxygen Portable Meter (Thermo Scientific™)

Take simple dissolved oxygen and temperature measurements with the Thermo Scientific™ Orion™ Star A123 DO Portable Meter with easy operation for basic field testing

Orion Star™ A213 Dissolved Oxygen Benchtop Meter (Thermo Scientific™)

Reliably measure dissolved oxygen (RDO optical / polarographic) and temperature with the Thermo Scientific™ Orion™ Star A213 RDO / DO Benchtop Meter for advanced lab analysis

Orion™ Ion Selective Electrode Accessories (Thermo Scientific™)

Use Thermo Scientific™ Orion™ Ion Selective Electrode Accessories for solid state and plastic membrane ion selective electrodes.

Orion™ Versa Star Pro™ DO Benchtop Meter (Thermo Scientific™)

Get premium performance and flexibility with the Thermo Scientific™ Orion™ Versa Star Pro™ Meter with DO / RDO Module for dissolved oxygen (optical / polarographic) and temperature

Orion Star™ A323 Dissolved Oxygen Portable Meter (Thermo Scientific™)

Accurately monitor dissolved oxygen (optical / polarographic) and temperature with the Thermo Scientific™ Orion™ Star A323 RDO / DO Portable Meter for challenging field testing

Orion Star™ A223 Dissolved Oxygen Portable Meter (Thermo Scientific™)

Reliably measure dissolved oxygen (optical / polarographic) and temperature with the Thermo Scientific™ Orion™ Star A223 RDO / DO Portable Meter for advanced field analysis

Orion™ RDO™ Stainless Steel Probe Guard (Thermo Scientific™)

Use this stainless-steel probe guard with RDO probes.

Orion Star™ A113 Dissolved Oxygen Benchtop Meter (Thermo Scientific™)

Take simple dissolved oxygen and temperature measurements with the Thermo Scientific™ Orion™ Star A113 DO Benchtop Meter with easy operation for basic lab testing

Orion™ Versa Star Dissolved Oxygen / RDO Measurement Module (Thermo Scientific™)

Add dissolved oxygen and temperature measurement capabilities to your Versa Star meter using the Thermo Scientific™ Orion™ Versa Star Dissolved Oxygen / RDO Measurement Module

Orion™ RDO™ Calibration Sleeve (Thermo Scientific™)

Replace a worn sleeve on an RDO probe with the Orion RDO Calibration Sleeve.

Orion™ Gas-Sensing ISE membranes (Thermo Scientific™)

Choose from loose or preassembled membranes for ease of use with Thermo Scientific™ Orion™ Gas-Sensing ISE membranes.