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Hanna HI98131 GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester
Specifications
| Temperature Accuracy | 0.5C /1F |
|---|---|
| Brand | Hanna |
| Dimensions | 163 x 40 x 26 mm (6.4 x 1.6 x 1.0) |
| Temperature Resolution | 0.1C / 0.1F |
| Temperature range | 0.0 to 60.0C / 32.0 to 140.0F |
| pH Range | 0.00 to 14.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | 0.1 pH |
| Environment | 0 to 50C (32 to 122F)| RH max 100% |
| pH Calibration | automatic| at one or two points using standard buffers (pH 4.01| 7.01|10.01)| one point calibration using quick calibration solution |
| pH Temperature Compensation | automatic |
| Battery Type/Life | 1.5V (4) / approx. 100 hours of continuous use |
| Automatic Shut-Off | auto-off after 8 minutes of non-use |
| TDS Range | 0 to 3000 ppm (500 CF)| 0 to 3999 ppm (700 CF) |
| TDS Accuracy | 2% F.S. |
| TDS Resolution | 10 ppm (mg/L) |
| Ordering Information | HI98131 is supplied with HI73127 pH electrode| HI73128 electrode removal tool| batteries (4)| instructions and quality certificate. |
| EC Range | 0.00 to 6.00 mS/cm |
| EC Resolution | 0.01 mS/cm |
| EC Accuracy | 2% F.S. |
| EC Calibration | automatic| one-point at 1.41 mS/cm or 5.00 mS/cm| one point calibration using quick calibration solution |
| TDS Calibration | done through conductivity |
| EC/TDS Temperature Compensation | EC/TDS |
| EC to TDS Conversion Factor | 0.5 (500 ppm) or 0.7 (700 ppm) |
| Cell Type | amperometric two pole |
| Model | HI98131 |
| Weight | 100 g (3.5 oz.) |
Key Features
- Waterproof and floats in water, designed for the humid growing environment
- Wide pH range of 0.00 to 14.00 pH
- Automatic Temperature Compensation (ATC), displays temperature in °C or °F
- Large LCD displays stability indicator, low-battery indicator, and calibration tags
Product Description
Hanna HI98131 GroLine Hydroponic Waterproof Pocket Tester is a compact, lightweight, and highly efficient multi-parameter meter designed for accurate measurement of pH, conductivity (EC), total dissolved solids (TDS), and temperature in hydroponic, greenhouse, and agricultural applications. Its slim pocket-sized design makes it ideal for quick on-site testing while maintaining professional-grade performance.
The HI98131 offers a wide pH range from 0.00 to 14.00 with reliable accuracy, along with EC measurement up to 6.00 mS/cm and TDS up to 3000 ppm (500 CF) or 3999 ppm (700 CF). The selectable EC to TDS conversion factor (0.5 or 0.7) provides flexibility for different nutrient solutions and water quality requirements, making it highly suitable for hydroponic systems.
Equipped with a Quick Cal mode, this tester allows simultaneous calibration of pH and EC/TDS using a single solution, saving time and simplifying operation. The replaceable HI73127 pH electrode with extractable junction ensures easy maintenance and prevents clogging, resulting in stable and consistent readings.
The multi-level LCD display shows pH, EC or TDS, and temperature readings simultaneously, along with calibration status, stability indicators, and battery percentage. The exposed temperature sensor enables fast response and ensures accurate readings through automatic temperature compensation.
Built for durability, the HI98131 is waterproof and designed to withstand humid growing environments. Additional features like the HOLD function, auto-off settings, and Battery Error Prevention System (BEPS) enhance usability and reliability.
Overall, the Hanna HI98131 is a versatile, user-friendly, and dependable tester that provides accurate multi-parameter analysis for professionals managing water quality in hydroponics and agriculture.
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Frequently Asked Questions
The Hanna HI98131 measures pH in a range of 0.00 to 14.00.
Yes, the HI98131 is waterproof and designed to float in water, making it ideal for humid environments.
The pH readings have an accuracy of ±0.05 pH.
The HI98131 operates on four 1.5V batteries and provides approximately 100 hours of continuous use.
Yes, it measures temperature with a range of 0.0 to 60.0°C (32.0 to 140.0°F) and displays it in either °C or °F.
The TDS range is from 0 to 3000 ppm using a 0.5 conversion factor or up to 3999 ppm with a 0.7 conversion factor.
Yes, the HI98131 features Automatic Temperature Compensation (ATC) for accurate readings.
The HI98131 is supplied with a pH electrode, electrode removal tool, batteries, instructions, and a quality certificate.
The HI98131 weighs 100 g (3.5 oz) and has dimensions of 163 x 40 x 26 mm (6.4 x 1.6 x 1.0 in).
The HI98131 can be calibrated automatically at one or two points using standard buffers (pH 4.01, 7.01, 10.01).
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