Accuracy, precision and reproducibility for pH measurement
For more than 40 years, ROSS pH electrodes have been helping to provide accuracy, stability and rapid response. Compared to conventional electrodes, the proven ROSS reference system exhibits stability in measurements, faster response, greater accuracy and precision when measuring samples that vary in temperature, or when calibrating in temperatures that differ from your samples.
ROSS pH electrodes are available in a variety of styles such as the clog free Sure-Flow junction, glass or epoxy electrodes, flat surface, semi-micro, micro, and spear tip designs.
for quality control and research
|Performance precision pH with durability||Piercing semi-solid samples||Performance reference half-cell|
|ROSS Ultra combination glass body extended life pH electrode||ROSS Ultra combination epoxy body pH electrode||ROSS combination glass body pH electrode with spear tip||ROSS Ultra glass body reference half-cell|
|Product SKU number||8102BNUWP||8156BNUWP||8163BNWP||800500U|
|Fill Solution (Cat. No.)||3 M KCl (810007)||3 M KCl (810007)||3 M KCl (810007)||3 M KCl (810007)|
|Dimension D (Dia) L (Length) T (Tip)|
L - 120 mm
L - 120 mm
L - 120 mm
L - 120 mm
|Connector Type||BNC Waterproof|
|Increase your productivity by adding accessories to your benchtop or portable meter. Meter Accessories ›|
ROSS pH electrode models
Combined pH & temperature
|Ultra Triode Combination ›|
|Ultra Triode Glass Combination ›|
|Ultra Triode Low Maintenance Combination ›|
|Ultra Triode Low Maintenance Combination, 3' cable ›|
|Ultra Combination ›|
|Ultra Glass Combination Semi-micro ›|
|Ultra Flat Surface Combination ›|
|Ultra Combination Semi-micro ›|
|Reference Electrode ›|
|Ultra Reference Electrode ›|
|Sure-Flow Combination ›|
|Sure-Flow Combination Semi-micro ›|
|Rugged Bulb Combination ›|
|Spear Tip Combination ›|
|Half-Cell Combination ›|
|Glass Combination ›|
|Combination Semi-micro ›|
|PerpHecT Combination Micro ›|
|Sodium Combination Ion Selective ›|
|Sleeve Junction Combination ›|
|Flat Surface Combination ›|
*Orion benchtop meters, including Versa Star, Orion Star, StarA. Review specifications for compatibility with the discontinued A-series meters or other brands. Screw cap electrodes require additional electrode adapter cable, screwcap to BNC, Cat. No. 91CBNC.
The accuracy and reliability of your pH and ORP measurements depend on the instrumentation you use. Learn more about how you can identify the best match based on your required features, performance, specifications, and budget.
Take your pH and ORP measurements to the field without sacrificing accuracy and reliability. Our portable meters are rugged and waterproof, and provide the dependable performance that your demanding applications require.
The accuracy and reliability of your measurements depend on the instrumentation you use. Learn more about how you can identify the best match based on your required features, performance, specifications, and budget.
We offer buffers, electrode storage solutions, electrode cleaning solutions, lab buffer kits, and electrode filling solutions for your measurement needs. Find the buffers and solutions that you need for your process.
Knowledge Base: Certificates of Analysis and SDS for Orion, ROSS, AQUAfast, AquaMate, and AquaSensors products.
Orion Meters Software and Upgrades
Thermo Scientific Orion benchtop and portable meters are designed to help deliver accurate, consistent results, day after day. Boost productivity by upgrading your software today.