Starting price
฿2,800
/ pH
HANNA Instruments HI98103 Checker pH Meter
Model: HI98103
The HANNA HI98103 is a pocket-type portable pH meter for rapid field measurements. It measures pH 0.0–14.0 with ±0.1 pH accuracy and 0.1 pH resolution. Popular in water quality labs, food and beverage plants, and agriculture across Thailand. Calibration is simple using pH 4.01 and 7.01 NIST-traceable buffer solutions, with electrode replacement recommended every 3–6 months.
Meas. Range
0–14 pH
Accuracy
±0.1 pH
Specifications
| Accuracy | ±0.1 pH |
| Resolution | 0.1 pH |
| Electrode Type | Replaceable single junction |
| Measuring Range | 0.0 – 14.0 pH |
| Supported Buffers | pH 4.01, 7.01 |
| Operating Temperature | 0 – 50 °C |
Use Cases
Monitoring tap water, wastewater, swimming pools, boiler water pH, and fermentation process control in food and beverage manufacturing.
Frequently Asked Questions
How often should a pH meter be calibrated?+
Calibrate with buffer solutions daily before use, or whenever the electrode is replaced. Formal calibration of the buffer solutions themselves is needed every 6–12 months.
Is ±0.1 pH accuracy sufficient for industrial use?+
Yes for general process monitoring. For research or drinking water quality certification requiring ±0.05 pH per WHO guidelines, use a higher-accuracy benchtop pH meter.
Must I use buffer solutions from the same manufacturer?+
No, but buffers must be NIST- or IUPAC-certified and within their expiry date. Contaminated or expired buffers will cause systematic calibration error.
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