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Waterproof Pocket Testers

pHTestr 20 Waterproof pH Tester

  • 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

  • Auto-Power Off saves battery power after non-use

  • Hold Function freezes reading momentarily for easy viewing

  • Self-Diagnostic for easy troubleshooting (e.g battery indicator, message codes)

  • Enhanced power saving allows extended power consumption up to 500 hrs with single battery set


General: Ideal for quick and accurate pH checks in pools and spas, aquariums and hydroponics operations, or anywhere frequent pH testing is required.

Industrial: Use for cooling towers, food processing water testing and process/wastewater testing in metal finishing, photo development, printing and chemical industries.

Educational: Useful in schools, many laboratory applications and ecology studies. 

Specifications of pHTestr 20 Waterproof Tester

Product Code

pH Range -1.00 to  15.00 pH
Resolution 0.01 pH
Accuracy 0.01 pH
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; >500 hrs

Copyright 1997 Eutech Instruments Pte Ltd. marketing@eutechinst.com