Advanced Azzota® Waterproof Pen Type pH Meter tester WPPH-30

High-accuracy pocket pH meter, 1 to 3 points calibration, setup menu contains five options. The tester is suitable for measuring the sample in a test tube with an accuracy of 0.01 pH. Carry case and calibration standard included.


  • A high-accuracy pocket pH meter is installed with a dual-display LCD.
  • Long-reach pH electrodes are suitable for measuring small-volume samples.
  • 1 to 3-point calibration with automatic recognition for USA and NIST buffers.
  • Automatic temperature compensation ensures accurate readings over the entire range.
  • Auto-Read function senses and locks the measurement endpoint.
  • Auto-Power Off effectively conserves battery life.
  • The setup menu allows setting the pH buffer group, number of calibration points, temperature unit, etc.
  • The reset function automatically resumes all settings and returns them to the factory defaults.
  • Replaceable electrode module reduces maintenance and replacement costs.
  • Waterproof feature to ensure complete protection in harsh environments.



  • Aquaculture and hydroponics
  • Food and beverage
  • Agriculture and other applications





    -1.00 to 15.00 pH


    0.01 pH


    ±0.01 pH

       Calibration Points

    1 to 3 points

       pH Buffer Options

    USA (pH 4.01/7.00/10.01) or NIST (pH 4.01/6.86/9.18)



    0 to 60°C, 32 to 140°F




    ±1°C, ±1.8°F

       Offset Calibration

    1 point

       Calibration Range

    Reading ±10°C/°F

       Other Specifications

       Temperature Compensation

    0 to 60°C, 32 to 140°F, automatic

       Hold Function

    Manual or auto-endpoint

       Auto-Power Off

    8 minutes after the last key is pressed


    Dual-line LCD (21 × 21 mm)

       Power Supply

    2 × 1.5V AAA batteries

       Battery Life

    Approximately 200 hours of continuous use


    240(L) × 40(Ø) mm


    100 g

    The new version can be found here: