Horiba pH Electrode 3-in-1 ToupH High Viscosity Type

Horiba pH Electrode 3-in-1 ToupH High Viscosity Type – Movable Sleeve Liquid Junction (Model 9681S-10D)

Horiba 9681S-10D is a 3-in-1 combination pH electrode specifically designed for accurate and stable pH measurement in high-viscosity, semi-solid, and difficult samples. This ToupH High Viscosity type electrode integrates the pH sensing glass membrane, reference electrode, and temperature sensor into a single probe, enabling simplified measurement setup and reliable automatic temperature compensation when used with compatible Horiba meters.

The electrode features a movable sleeve liquid junction, which provides a larger and adjustable contact area between the reference electrolyte and the sample. This design significantly improves measurement stability in samples such as emulsions, slurries, creams, gels, oils, and high-solid content solutions where conventional ceramic junctions may clog or respond slowly.

Key Features

• 3-in-1 combination electrode (pH sensor, reference electrode, temperature sensor)

• ToupH High Viscosity type for thick, viscous, or challenging samples

• Movable sleeve liquid junction for improved electrolyte flow and reduced clogging

• Stable and reproducible pH measurements in difficult sample matrices

• Fast response time compared to standard junction designs

• Reduced drift during continuous or repeated measurements

• Compatible with Horiba LAQUA pH meters and suitable pH instruments

• Easy cleaning and maintenance for long service life

Electrode Specifications (General)

• Electrode Type: 3-in-1 combination pH electrode

• Application Type: High viscosity and difficult samples

• Liquid Junction: Movable sleeve

• pH Measurement Range: Typically pH 0 to 14

• Reference System: Ag/AgCl

• Temperature Sensor: Integrated (for ATC with compatible meters)

• Glass Type: Special pH glass optimized for viscous samples

(Exact electrical, dimensional, and temperature specifications depend on the connected meter and operating conditions.)

Applications

• High-viscosity liquids and semi-solid samples

• Emulsions, slurries, and suspensions

• Creams, gels, and cosmetic products

• Food and beverage testing

• Chemical and industrial process samples

• Research and quality control laboratories

Advantages

The movable sleeve liquid junction of the Horiba 9681S-10D allows users to adjust electrolyte contact with the sample, minimizing clogging and improving response in viscous or particulate-rich media. The 3-in-1 design simplifies measurement procedures and enhances temperature-compensated accuracy, making this electrode ideal for demanding pH measurement applications.