HI98103 Checker® pH Tester – Pocket-Sized Precision with Replaceable Electrode
Simplify pH testing with the HI98103 Checker® pH Tester, designed for direct measurement in any environment. This compact, pocket-sized tester combines ±0.2 pH accuracy with a replaceable electrode design that extends the life of your investment, making it ideal for pools, hydroponics, aquariums, environmental testing, laboratories, and field applications.
Why Choose HI98103 Checker pH Tester?
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Replaceable electrode – HI1271 electrode can be easily replaced when needed, extending tester life and reducing long-term costs
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±0.2 pH accuracy – Reliable precision for confident pH measurements across the full 0-14 pH range
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Complete starter kit – Includes calibration buffers, cleaning solution, storage solution, and battery – everything needed to start testing immediately
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Stability indicator – Onscreen display ensures the highest confidence in your results by confirming reading stability
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Ultra-portable – Compact pocket size (6.8" x 2" x 0.9") weighs just 1.8 oz for easy field and on-the-go testing
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Exceptional battery life – CR2032 Li-ion battery provides up to 1,000 hours of continuous use with low-battery indicator
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Selectable auto-off – Choose 8 minutes, 60 minutes, or disable for energy savings and peace of mind
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Large LCD display – Easy-to-read screen provides at-a-glance readings from any angle
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Single-button operation – Streamlined testing process for any user skill level
Replaceable Electrode Design
The HI98103 features a replaceable HI1271 pH electrode designed for general pH measurements. Don't let a broken electrode stop your testing – simply unscrew the old electrode and screw on a new one for hassle-free replacement.
Tapered Electrode Design
The supplied HI1271 pH electrode is 103 mm long and tapers to an 8 mm diameter at the sensing end, making it easy to fit into test tubes, vials, and other containers with small openings.
Plastic Body
The plastic electrode body significantly reduces necessary maintenance compared to glass-body electrodes.
Technical Specifications
| Specification |
Detail |
| Model |
HI98103 |
| pH Range |
0.0 to 14.0 pH |
| pH Resolution |
0.1 pH |
| pH Accuracy @ 25°C |
±0.2 pH |
| pH Calibration |
Automatic, at one or two points |
| pH Electrode |
HI1271 replaceable (included) |
| Stability indicator |
Yes, onscreen display |
| Automatic shut-off |
8 minutes, 60 minutes, or can be disabled |
| Battery type / life |
CR2032 Li-ion / approximately 1,000 hours continuous use |
| Operating environment |
0 to 50°C (32 to 122°F), RH 95% max |
| Dimensions |
174 x 50 x 21 mm (6.8" x 2" x 0.9") |
| Weight |
50 g (1.8 oz) |
| Origin |
Manufactured in Romania by Hanna Instruments |
Applications
Perfect for pH testing in swimming pools and spas, hydroponics nutrient solutions, aquarium water quality, marine aquariums, environmental field testing, laboratory analysis, educational settings, food and beverage production, wastewater monitoring, and any application requiring portable, accurate pH measurement.
Complete Testing Kit Included
We believe buying a tester should be simple. Your HI98103 Checker® pH tester comes equipped with everything you need for successful testing right out of the box.
pH 4 & 7 Buffer Sachets
Includes pH 4.01 and 7.01 buffer solution sachets (2 each) for proper calibration. Single-use sachets are individually sealed so you use fresh buffer each time you calibrate.
Electrode Cleaning Solution
Includes cleaning solution sachets (2) engineered to keep your electrode free from buildup. This concentrated combination of detergents cleans your electrode quickly and effectively.
Storage Solution
Proper storage ensures reliable measurements and long electrode life. The included storage solution is specially formulated to keep the pH glass hydrated while minimizing organic growth.
What's Included
HI98103 Checker® pH tester with HI1271 replaceable pH electrode, 2 sachets pH 4.01 buffer solution, 2 sachets pH 7.01 buffer solution, 2 sachets electrode cleaning solution, storage solution, CR2032 battery, quality certificate, instruction manual, and protective carrying case.
