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Hanna Instruments – HI98107 pHep Waterproof Pocket pH Tester with 0.1 pH Resolution

The pHep® HI98107 from Hanna Instruments is a compact, waterproof pocket-sized pH tester designed for fast and accurate measurements in both laboratory and field environments. With a measurement range of 0.0 to 14.0 pH, 0.1 pH resolution, and ±0.1 pH accuracy, it delivers reliable performance in freshwater applications. Featuring automatic temperature compensation (ATC), automatic one- or two-point calibration, and a user-friendly two-button operation, this tester is durable, ergonomic, and ideal for routine pH monitoring.

  • Extractable Cloth Junction to Extend Electrode Life

  • Automatic Temperature Compensation (ATC)

  • Waterproof Pocket-Sized Design

  • Automatic One- or Two-Point Calibration

Description

The HI98107 pHep® Waterproof Pocket pH Tester is engineered to provide dependable pH measurements with 0.1 pH resolution and ±0.1 pH accuracy across a full range of 0.0 to 14.0 pH. Its slim and ergonomic design allows comfortable handling, whether in a laboratory, industrial facility, aquaculture site, or field testing environment. The integrated automatic temperature compensation (0 to 50°C) ensures precise readings by adjusting for temperature fluctuations, while the stability indicator confirms when measurements are ready for recording.

Designed for durability and convenience, the HI98107 features an extractable cloth junction that extends electrode life and improves long-term performance. The waterproof housing protects the tester in wet environments, and the Battery Error Prevention System (BEPS) prevents inaccurate readings caused by low battery levels. With automatic shut-off settings (8 minutes, 60 minutes, or disabled) and up to 800 hours of battery life from a CR2032 battery, this lightweight and portable tester is an excellent solution for freshwater pH testing applications.

Features

  • Extractable Cloth Junction – Extends pH electrode life and ensures longer-lasting performance.
  • Automatic Temperature Compensation (ATC) – Provides accurate readings from 0 to 50°C (32 to 122°F) with temperature display in °C or °F.
  • Waterproof Pocket-Sized Design – Slim and ergonomic construction for easy handling in lab or field use.
  • Automatic Calibration – One- or two-point calibration using standard buffers (pH 4.01, 7.01, 10.01).
  • Stability Indicator – Confirms when the reading has stabilized for reliable measurement.
  • Automatic Shut-Off – Selectable 8 minutes, 60 minutes, or disabled setting to conserve battery life.
  • Battery Error Prevention System (BEPS) – Prevents inaccurate readings due to low battery level.

Specifications

SKU HI98107
Product Name pHep Waterproof Pocket pH Tester with 0.1 pH Resolution – HI98107
Quote Required Yes
pH Range 0.0 to 14.0 pH
pH Resolution 0.1 pH
pH Accuracy ±0.1 pH
pH Calibration Automatic, one or two points
pH Temperature Compensation Automatic, 0 to 50 oC (32 to 122°F)
Temperature Range 0 to 50 oC (32.0 to 122.0oF)
Temperature Resolution 0.1 oC / 0.1 °F
Temperature Accuracy ±0.5 oC / ±1.0 °F
Automatic Shut-Off 8 minutes, 60 minutes, or disabled
Battery Type/Life CR2032 3V Li-Ion (1 pc.) / approximately 800 hours of use
Environment 0 to 50°C (32 to 122°F); RH max 100%
Dimensions 160 x 40 x 17 mm (6.3 x 1.6 x 0.7“)
Weight 65 g (2.3 oz.) without battery
Ordering Information The HI98107 is supplied with protective cap, pH 4.01 buffer sachet, pH 7.01 buffer sachet (2), electrode cleaning sachet, CR2032 battery, instrument quality certificate and instructional manual.

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