Hanna Marine pH Tester (HI98103)
The HI98103 Hanna Marine pH Tester is the next generation of the original Hanna Checker pH meter. With over 1 million units used worldwide since 1991, the Checker is trusted by students, researchers, and marine enthusiasts for accurate, reliable, and simple pH measurements.
Key Features
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Large LCD display with stability indicator, low-battery indicator, and calibration tags
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Replaceable HI1271 gel-filled pH electrode fits easily into containers with small openings
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Automatic calibration to one or two points
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Automatic recognition of standard buffers with displayed calibration tags
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User-controlled automatic shut-off to conserve battery life
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Long battery life – approximately 1000 hours of continuous use
Technical Specifications
| Parameter | Detail |
|---|---|
| pH Range | 0.0–14.0 pH |
| Resolution | 0.1 pH |
| Accuracy | ±0.2 pH |
| Calibration | Automatic, 1–2 points |
| Electrode | HI1271 gel-filled, screw type connector (included) |
| Auto Shut-Off | 8 min, 60 min, or disabled |
| Battery | 1 × 1.5V CR2032, ~1000 hrs |
| Environment | 0–50 °C; RH max 95% |
| Dimensions | 50 × 174 × 21 mm |
| Weight | 50 g |
Why Choose HI98103
The HI98103 provides quick, accurate pH measurements in marine, aquarium, lab, or educational settings. Its compact design, automatic features, and durable electrode make it ideal for consistent monitoring and water quality management.
