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

Deuterium Lamps

pH : Portable pH Testers, Ideal for quick and accurate pH checks in pools and spas, aquariums and hydroponics operations.

Choose from our range of unique IP67 pocket-sized waterproof pH meters.  These innovative pH meters are the WORLD'S FIRST pH testers to utilize user-replaceable pH electrodes to enhance the useful lifespan of the instrument. 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. Newer version testers feature large screen dual line display giving simultaneous pH and temperature readout as illustrated in the picture. 

Applications for the pH Scan meter include :

General :

Ideal for quick and accurate pH checks in pools and spas, aquariums and hydroponics operations, or anywhere frequent pH testing is required. pHTestr 30 meets requirements for many standard environmental and ASTM test methods

Industrial :

Use for cooling towers, water treatment, water pollution prevention ,drinking water purification, monitoring waste water, food processing testing in metal finishing, photo development, printing and chemical industries.

Educational :

Useful in university, schools, many laboratory applications such as Marine Biology, Agriculture and ecology studies. 

Main Features :

  • Large Display Screen - dual display LCD for enhanced readability, provides comprehensive meter information
  • Waterproof, Dustproof Housing - IP67 rated, maintains the integrity of your tester even in harsh conditions. Plus it floats!
  • User-Replaceable Sensor - reuse the same meter body many times
  • Double Junction Sensor offers longer lasting usage
  • Push-Button Calibration with Auto-Buffer Recognition - quick, easy calibration with no calibration mistakes
  • Choice of USA or NIST pH buffer standards with up to 3 points
  • Automatic Temperature Compensation (ATC) - ensures optimum accuracy under fluctuating temperatures
  • Temperature Display Readout (only available in pHTestr 30)
  • Auto-Power Off saves battery power after non-useHold Function freezes reading momentarily for easy viewing
  • Self-Diagnostic with message codes for easy troubleshooting


Product Code

pH Range -1.0 to  15.0 pH -1.00 to 15.00 pH
Resolution 0.1 pH 0.01 pH
Accuracy 0.1 pH 0.01 pH
Temperature Display No No 0 to 50 C or 
32 to 122 F 
Resolution No No 0.1 C / F
Accuracy No No 0.5 C / 0.9 F
No. of Calibration Points 3 points
pH Buffer Options USA - pH 4.01, 7.00, 10.01; NIST - pH 4.01, 6.86, 9.18 
LCD Display Dual display with battery indicator, error messages/codes
Special Functions Large Dual Custom Display, Self-diagnostic; Hold function; 
Auto-Power Off after 8.5 minutes
Power 4 x 1.4V alkaline button cell batteries

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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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