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Electrochemical Sensors

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

Deuterium Lamps

pH Tester: chemical applications, wastewater where sulphides or organics will destroy ordinary pH electrode, chemical process streams where mercury, copper, lead, or silver may be present.

The innovative IP67 pocket-sized pHScan3 & pHScan3+ meters are the WORLD'S FIRST pH testers to utilize user-replaceable pH electrodes to enhance the useful lifespan of the instrument. Since pHScan 3 employs offset and up to 3-point calibration, they are suitable for most ASTM and EPA test procedures. These feather-weight pH meters have a pH scale of -1.0 - 15 and can be calibrated up to 3 points in pH buffer 4.01, 7.00, 10.01 they are ideal for measuring the pH level of rugged outdoor and wet applications. 

Applications for the pH Scan 3 & 3+ meter include :

General : 

Since pHScan 3 employs offset and up to 3-point calibration, they are suitable for most ASTM and EPA test procedures. Ideal for all kinds of water quality testing in and out of the laboratory.

Laboratory : 

Ideal for lab measurements where solvents, chemicals, or biological materials make ordinary testers or electrodes impractical. Can be used with tris buffers. 

Industrial :

Best choices for chemical applications; plating baths even when heavy metals are present; wastewater where sulphides or organics will destroy ordinary pH electrode; and process streams where mercury, copper, lead, or silver may be present.

Educational : 

Useful in schools, many laboratory applications and ecology studies. Double junction electrode will keep working even where pollutants cause problems for other meters.

Food : 

Measure pH of food, beer, wine, milk, cleaning water, rinse water, and wastewater.

Main Features :

  • Waterproof, Dustproof Housing - IP67 rated, ideal for harsh field conditions. Plus it floats!
  • User-Replaceable Sensor - reuse the same meter body many times
  • Microprocessor-based Functions - for fast, stable readings
  • Double Junction Electrode - for significantly longer electrode life, especially in harsh applications
  • ±0.01 pH Resolution 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
  • Automatic Temperature Compensation (ATC) - ensures optimum accuracy under fluctuating temperatures
  • Temperature Readout (pHScan 3+) at the touch of buttons
  • Auto-Power Off saves battery power after non-use
  • Hold Function freezes reading momentarily for easy viewing and recording
  • Self-Diagnostic with message codes for easy troubleshooting
  • Valox® sensor housing for good chemical compatibility and durability


Product Code

pH Range 0.00 to 15.00 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)
Temperature Display - 0 to 50.0 °C (±1.0 °C accuracy)
Special Functions Self-diagnostic; Hold; Auto-Power Off after 8.5 minutes
Power Requirements 4 x 1.4V alkaline button cell batteries; >150 hours

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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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