Waterproof pHep®5 pH/Temperature Tester - HI98128

SKU: HI98128

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Hanna's pHep®5 is an advanced, ergonomic, waterproof pH and temperature tester, with  0.01 resolution, that measures from -2.0 to 16.0 pH  pH and accuracy of ±0.05 pH. pHep5 features automatic one or two-point calibration to known buffer and automatic temperature compensation.

  • Waterproof
  • Replaceable pH Electrode 
  • Automatic up to Three-Point pH Calibration

The pHep®5 is a waterproof pH tester with a 0.01 pH resolution and an accuracy of ±0.5 pH. The one, two, or three-point calibration is automatic to two selectable buffer sets (4.01, 7.01 and 10.01 or 4.01, 6.86, and 9.18). The pHep®5 also features a replaceable electrode with a stainless steel round connector. The HI73127 replacement pH electrode also features an extractable cloth that is used to renew the junction by extracting ⅛” of the cloth junction to expose a new portion. Any clogging that was present is cleared and the response time will be back to normal, extending the life of the pH electrode.


Waterproof casing designed to float if dropped in water

Expanded pH Range from -2.0 to 16.0 pH

Automatic Temperature Compensation, displays temperature in °C or °F

Stability indicator confirms the reading has stabilized

HOLD button for easier measurement recording

Battery Error Prevention System (BEPS)

Auto-off to preserve battery life

More Information
SKU HI98128
Product Name Waterproof pHep®5 pH/Temperature Tester - HI98128
Quote Required No
pH Range -2.00 to 16.00 pH
pH Resolution 0.01 pH
pH Accuracy ±0.05 pH
pH Calibration automatic, at one, two, or three points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18)
pH Temperature Compensation automatic
Temperature Range -5.0 to 60.0°C / 23.0 to 140.0°F
Temperature Resolution 0.1°C / 0.1°F
Temperature Accuracy ±0.5°C /±1°F
pH Electrode HI73127 replaceable pH electrode (included)
Automatic Shut-Off after 8 minutes of non-use
Battery Type/Life 1.5V (4) / approx. 300 hours of continuous use
Environment -5 to 50°C (23 to 122°F); RH max 100%
Dimensions 163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’)
Weight 100 g (3.5 oz.)
Ordering Information HI98128 (pHep®5) is supplied with HI73127 pH electrode, HI73128 electrode removal tool, batteries and instructions.
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