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Instruments, Controllers & Sensors




Portable Turbidity meters

Bench Turbidity meters

Online Turbidity

Flame Photometry

BWB-1 Flame Photometer

Dissolved Oxygen (DO)

Handheld Dissolved Oxygen IP67 Dissolved Oxygen Meters

Bench Dissolved Oxygen Meters

Industrial Dissolved Oxygen 

Dissolved Oxygen Probes

DO Probe Conditioner


Portable pH Testers

Handheld pH Meters

Waterproof pH Meters

Bench pH Meters

Industrial pH Controllers

Replacement pH Electrodes


Free Chlorine

Total Chlorine

Cyanuric Acid

Redox (ORP)

Portable Redox Testers

Handheld Redox Meters

Waterproof ORP Meters

Bench ORP Meters

Industrial ORP Controllers

Replacement Metal ORP Probes

Conductivity (EC)

Portable Conductivity Testers

Handheld Conductivity Meters

Waterproof Conductivity Meters

Bench Conductivity Meters

Industrial Conductivity Meters

Replacement Conductivity Cells

Total Dissolved Solids (TDS)

Portable TDS Testers

Handheld TDS Meters

Waterproof TDS Meters

Bench TDS Meters

Industrial TDS Controllers

Replacement Cells

Ion Concentration

Handheld Ion Meters

Waterproof Ion Meters

Bench Ion Meters

Ion Selective Electrodes (ISE)


Portable Salinity Testers

Handheld Salinity Meters

Bench Salinity Meters

Salinity Sensors

Multi-parameter Bench Meters


Please click above to view this range


Multifunctional Controller


Chlorine Dioxide

Paracetic Acid

Hydrogen Peroxide 



Bench Resistivity Meters

Industrial Resistivity Controller

Resistivity Cells

Electrochemical Sensors

pH, Reference, Conductivity, Redox, Dissolved Oxygen, Ion Selective Electrodes, Calibration Solutions, Hollow Cathode Lamps and

Deuterium Lamps

Portable Waterproof pH testers : laboratory, photographic development, printing processes, hydroponics and pool/spa water analysis. Use your own specified electrodes via the BNC connection.

The pHScanBNC IP67 Portable pH Tester offers user-selectable electrodes with BNC connectors - for greater flexibility with choice of electrodes for specific applications. These feather-weight pH meters have 3-Point Push-Button Calibration in pH buffer 4.01, 7.00, 10.01 - very quick & easy - testers automatically provide offset and slope adjustments. The accuracy of these Testers is an impressive 0.02 pH. They have a pH scale of 0 - 14.99 pH and are ideal for measuring the pH level of rugged outdoor and wet applications. 

Applications for the pHScanBNC meter include :

General : 

Ideal for quick and easy pH checks in most applications, including: aquariums, food processing, laboratory, photographic development, printing processes, hydroponics and pool/spa water analysis. Ideal for specially shaped electrodes - like spear tipped, flat tipped or special diameter models.

Industrial : 

Great for wastewater treatment checks, water conditioning plants, coolant testing, cooling towers and plating/finishing operations, plus many other chemical process applications. Use long cabled electrodes to get into hard-to-reach places, or for checking readings from pH electrodes submersed in tanks or pipelines.

Educational : 

Ideal for all levels of education. Use small-diameter electrode that fits in test tubes. 

Main Features :

  • Waterproof, Dustproof Housing - IP67 rated, ideal for harsh field conditions. Plus it floats!
  • Microprocessor-based Functions - for fast, stable readings
  • Multi-Electrode Options - use tester in virtually any application, even highly specialized ones
  • 0.02 pH Accuracy with 3-Point Push-Button Calibration - quick, easy calibration, testers automatically provide offset and slope adjustments
  • Auto-Buffer Recognition (USA or NIST Buffer Standards) - no calibration mistakes
  • Auto-Power Off saves battery power
  • Hold Function freezes reading momentarily for easy viewing and recording
  • Self-Diagnostic with message codes for easy troubleshooting


Product Code

pH Range 0.00 to 14.99 pH
Resolution 0.01 pH
Accuracy 0.02 pH
No. of Calibration Points Up to 3 points
pH Buffer Options USA (pH 4.01, 7.00, 10.01); NIST (pH 4.01, 6.86, 9.18)
Special Functions Self-diagnostic; Hold; Auto-Power Off after 8.5 minutes
Power 4 x 1.4V button cell

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We are proud to announce the launch of the Worlds First CFR 21 Compliant - Windows CE Driven Multi-Parameter 6000 Range of Bench Meters. Ideal for use in industries such as Pharmaceutical, Food & Drug Manufacture and Health & Human Services. Please click here for details.

We accept all major credit/debit cards - please contact us for our best possible prices!; any questions? Why not try our Technical Area where you will find an in-depth explanation of many relevant aspects within the field of electrochemistry! more..


Russell Mainstream Supply Ltd.


Cameron House, 8 Crown Square, Kingskettle, Cupar, Fife, KY15 7PW


Phone: +44 (0)1337 831192

Fax: +44 (0)1337 371192


Email: Sales@rmprocesscontrol.co.uk 



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