Combo Meter - pH / Conductivity, Hanna
Product Code: HI98129
The Hanna Instruments® HI98129 is a waterproof, multi-parameter pocket tester designed to accurately measure pH, electrical conductivity (EC), total dissolved solids (TDS), and temperature with a single handheld instrument. Ideal for water quality testing in aquaculture, fish hatcheries, hydroponics, environmental monitoring, laboratories, and field applications, the HI98129 combines four essential measurements into one compact meter. Its replaceable pH electrode, automatic temperature compensation (ATC), and waterproof floating design provide reliable performance while reducing long-term operating costs.
- Measures pH, EC, TDS, and temperature with one instrument.
- Waterproof housing floats if accidentally dropped into water.
- Replaceable HI73127 pH electrode extends the service life of the tester.
- Automatic Temperature Compensation (ATC) ensures accurate readings across changing temperatures.
- Automatic one- or two-point pH calibration.
- Adjustable EC-to-TDS conversion factor (0.45–1.00).
- Adjustable temperature compensation coefficient (β).
- Large LCD simultaneously displays the measurement and temperature.
- Stability indicator confirms when readings have stabilised.
- Battery Error Prevention System (BEPS) prevents inaccurate readings caused by low battery voltage.
- Automatic shut-off after eight minutes of inactivity helps conserve battery life.
Product Specifications:
| Specification | Details |
|---|---|
| Model | HI98129 |
| Product Type | Waterproof multi-parameter pocket tester |
| Measurements | pH, EC, TDS, Temperature |
| pH Range | 0.00 to 14.00 pH |
| pH Resolution | 0.01 pH |
| pH Accuracy | ±0.05 pH |
| EC Range | 0 to 3,999 µS/cm |
| EC Resolution | 1 µS/cm |
| EC Accuracy | ±2% Full Scale |
| TDS Range | 0 to 2,000 ppm (mg/L) |
| TDS Resolution | 1 ppm |
| TDS Accuracy | ±2% Full Scale |
| Temperature Range | -5.0 to 60.0°C (23.0 to 140.0°F) |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±0.5°C |
| Temperature Compensation | Automatic |
| pH Calibration | Automatic, one- or two-point |
| EC/TDS Calibration | Automatic, one-point |
| Replaceable pH Electrode | HI73127 |
| Battery Life | Approximately 100 hours of continuous use |
| Power Supply | Four 1.5 V batteries |
| Dimensions | 163 × 40 × 26 mm |
| Weight | 100 g |
| Waterproof Rating | Waterproof and floating design |
pH Calibration, pH Storage Solution, pH Cleaning Solution, and Conductivity Solutions are all sold separately.
Specification Data Sheet for HI98129
Manufacturer Flyer for HI98129
Note that calibration, storage and cleaning solutions are not included with the meter. Storage solution will be required to soak the meter prior to the first usage.
