ROSS-electrode-3

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. 


 

Celebrating 40 years of ROSS electrodes

Celebrate ROSS

 


Featured electrodes

 Performance
for quality control and research
Performance precision pH with durabilityPiercing semi-solid samplesPerformance reference half-cell
 Ultra combination glass body extended life pH electrode 8102BNUWPROSS Ultra combination epoxy body pH electrode 8156BNUWPROSS combination glass body pH electrode with spear tip 8163BNWPROSS Ultra glass body reference half-cell electrode 800500U
 ROSS Ultra combination glass body extended life pH electrodeROSS Ultra combination epoxy body pH electrodeROSS combination glass body pH electrode with spear tipROSS Ultra glass body reference half-cell
 
  • For precise pH determinations
  • General purpose, high performance
  • Top accuracy and rapid response to temperature extremes
  • General purpose, high performance
  • Extended life
  • For cheese, meat, and fruit samples
  • Measure samples as small as 100μL
  • Double junction for TRIS samples
  • Use with 8101BNWP or 8101SC ROSS pH half-cell or 8411BN ROSS sodium half-cell electrodes
Product SKU number8102BNUWP8156BNUWP8163BNWP
800500U
pH Range0-140-140-140-14
pH Precision0.010.010.01---
Temp. Range0-100°C0-100°C0-100°C0-100°C
Internal ReferenceROSSROSSROSSROSS
JunctionCeramicGlass FiberCeramicCeramic
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
D - 12 mm

L - 120 mm
D - 12 mm

L - 120 mm
D - T - 4.5 mm x 20 mm

L - 120 mm
D - 12 mm

Connector TypeBNC Waterproof

BNC Waterproof

BNC Waterproof
Screw Cap
Pin Tip
  Increase your productivity by adding accessories to your benchtop or portable meter. Meter Accessories ›

ROSS Electrodes compatible with Orion Benchtop and Portable Meters*

ROSS pH electrode models

Extended life

Combined pH & temperature

TRIS compatible

Rugged bulb

Clog-free maintenance

Refillable

Glass body

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 ›    
Combination ›     
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.

pH and ORP
benchtop meters

find the right benchtop meter for your pH and ORP measurement needs

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.

pH and ORP
portable meters 

find the right portable meter for your pH and ORP measurement needs

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.

Electrodes
and probes

view our selection of electrodes

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.

Buffers
and solutions

view our buffer and solutions

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.

Support

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.

Find your software