Azzta Pen Type Waterproof pH Meter with 180mm*Dia.40mm Dimension

Economical pocket pH tester, 2 points calibration, Automatic Temperature Compensation. The meter is suitable for measuring the pH of semisolids, accuracy: 0.05 pH. Carry case and calibration standard included.

• Economical pocket pH tester is equipped with a flat surface pH electrode.
• 2 points push-button calibration with auto-buffer recognition.
• Automatic temperature compensation ensures accurate readings over the entire range.
• Auto-Power Off effectively conserves battery life.
• Hold function momentarily freezes reading for easy viewing and recording.
• Replaceable electrode module reduces maintenance and replacement cost.
• Waterproof feature to ensure complete protection in a harsh environment.

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


Model WPPH-20


0.00 to 14.00 pH


0.01 pH


±0.05 pH

   Calibration Points

2 points

   pH Buffer Options

USA (pH 4.01/7.00/10.01)



0 to 60°C





   Other Specifications

   Temperature Compensation

0 to 60°C, automatic

   Hold Function


   Auto-Power Off

8 minutes after the last key pressed


Single-line LCD (21 × 21 mm)

   Power Supply

3 × 1.5V LR44 micro alkaline batteries

   Battery Life

Approximately 150 hours of continuous use


185(L) × 40(Ø) mm


100 g

The new version can be found here: