
Hanna (HI98121) Combination pH-ORP Meter Tester
Dual-Parameter Testing Performance
Hanna HI98121 Full Specifications
| Model Number | Hanna HI98121 |
| Display Type | Large LCD screen with clear readability |
| Temperature Compensation | Automatic (ATC) - eliminates manual calculations |
| Junction Type | Non-clogging, replenishable fiber junction |
| Power Source | Four 1.5V batteries (included) |
| ORP Calibration | Factory set, automatic |
| Included Accessories | Protective cap, calibration screwdriver, batteries, instructions |
Professional & Hobbyist Water Testing
The HI98121 serves water treatment professionals verifying reverse osmosis system performance, aquarium enthusiasts monitoring pH and oxidation potential, laboratory technicians conducting field measurements, and pool service providers checking sanitizer effectiveness. The replaceable electrode design extends the tester's operational life far beyond sealed units, while the fiber junction resists clogging in samples with high particulate content. Hanna Instruments' vertically integrated manufacturing ensures consistent quality control across all components. The dual-parameter functionality eliminates the need to carry separate pH and ORP meters, and the waterproof housing protects electronics in wet environments typical of water testing applications.
Dual-Parameter Testing Performance
Hanna HI98121 Full Specifications
| Model Number | Hanna HI98121 |
| Display Type | Large LCD screen with clear readability |
| Temperature Compensation | Automatic (ATC) - eliminates manual calculations |
| Junction Type | Non-clogging, replenishable fiber junction |
| Power Source | Four 1.5V batteries (included) |
| ORP Calibration | Factory set, automatic |
| Included Accessories | Protective cap, calibration screwdriver, batteries, instructions |
Professional & Hobbyist Water Testing
The HI98121 serves water treatment professionals verifying reverse osmosis system performance, aquarium enthusiasts monitoring pH and oxidation potential, laboratory technicians conducting field measurements, and pool service providers checking sanitizer effectiveness. The replaceable electrode design extends the tester's operational life far beyond sealed units, while the fiber junction resists clogging in samples with high particulate content. Hanna Instruments' vertically integrated manufacturing ensures consistent quality control across all components. The dual-parameter functionality eliminates the need to carry separate pH and ORP meters, and the waterproof housing protects electronics in wet environments typical of water testing applications.
Original: $449.00
-65%$449.00
$157.15Description
Dual-Parameter Testing Performance
Hanna HI98121 Full Specifications
| Model Number | Hanna HI98121 |
| Display Type | Large LCD screen with clear readability |
| Temperature Compensation | Automatic (ATC) - eliminates manual calculations |
| Junction Type | Non-clogging, replenishable fiber junction |
| Power Source | Four 1.5V batteries (included) |
| ORP Calibration | Factory set, automatic |
| Included Accessories | Protective cap, calibration screwdriver, batteries, instructions |
Professional & Hobbyist Water Testing
The HI98121 serves water treatment professionals verifying reverse osmosis system performance, aquarium enthusiasts monitoring pH and oxidation potential, laboratory technicians conducting field measurements, and pool service providers checking sanitizer effectiveness. The replaceable electrode design extends the tester's operational life far beyond sealed units, while the fiber junction resists clogging in samples with high particulate content. Hanna Instruments' vertically integrated manufacturing ensures consistent quality control across all components. The dual-parameter functionality eliminates the need to carry separate pH and ORP meters, and the waterproof housing protects electronics in wet environments typical of water testing applications.












