Hanna HI98198 Optical Dissolved Oxygen Meter
| Brand | |
|---|---|
| Model | HI-98198 |
| Measurement | Optical dissolved oxygen and temperature |
| DO concentration range | 0.00–50.00 mg/L |
| DO saturation range | 0.0–500.0% |
| Display resolution | 0.01 mg/L; 0.1% saturation |
| Included probe | HI764113 optical DO probe, 4 m cable |
| Temperature range | −5.0 to 50.0°C |
| Logging capacity | 4,000 records, log on demand |
| Connectivity | USB-C |
| Meter protection | IP67 |
| Meter weight with batteries | 450 g |
The HI98198 is a professional portable dissolved oxygen meter for fresh and saltwater. The standard UK package includes the HI764113 optical probe with a four-metre cable, allowing oxygen concentration, saturation and temperature readings to be recorded in the field.
Supplier dispatch: Supplied directly by Hanna Instruments. Supplier stock was shown as available at our latest check.
£2,553.93 (inc VAT)
Hanna HI98198 Optical Dissolved Oxygen Meter
Optical oxygen measurements for ponds, lakes and field work
The HI98198 is a professional portable dissolved oxygen meter for fresh and saltwater. The standard UK package includes the HI764113 optical probe with a four-metre cable, allowing oxygen concentration, saturation and temperature readings to be recorded in the field.
Choosing the right measurement
Optical measurement uses luminescence quenching rather than a galvanic or polarographic electrochemical cell. It offers a different probe-care routine, but the Smart Cap, optical surfaces and calibration still need attention. Choose a dedicated oxygen meter when those measurements are the priority; a multiparameter system is a separate option for combined pH and conductivity work.
Technical overview
| Specification | Details |
|---|---|
| Measurement | Optical dissolved oxygen and temperature |
| DO concentration range | 0.00–50.00 mg/L |
| DO saturation range | 0.0–500.0% |
| Display resolution | 0.01 mg/L; 0.1% saturation |
| Included probe | HI764113 optical DO probe, 4 m cable |
| Temperature range | −5.0 to 50.0°C |
| Logging capacity | 4,000 records, log on demand |
| Connectivity | USB-C |
| Meter protection | IP67 |
| Meter weight with batteries | 450 g |
What is included
- HI98198 meter
- HI764113 optical DO probe with 4 m cable and protective shield
- HI764113-1 Smart Cap with O-ring
- HI7040 zero oxygen solution
- Calibration/storage vessel and two 100 mL beakers
- Syringe with silicone grease and lens wipe
- Four AA batteries, USB cable, certificates and instructions
- Carrying case
Reagents and optional accessories
Replacement Smart Caps and longer-cable probe versions are separate exact-reference items. Do not add a galvanic membrane or electrolyte kit as a generic optical-probe accessory.
Care and reliable results
The meter automatically measures pressure and temperature for compensation. Salinity compensation uses the salinity value entered by the operator, so it must be appropriate for the sample. Protect and clean the optical cap, follow the calibration instructions and keep the relevant quality and maintenance records.
Compare related options
- Hanna Dissolved Oxygen Meter for Fish Farming (10m Probe) – HI-9147-10
- Hanna Multiparameter Waterproof Meter (pH, EC, TDS, DO, ORP & Salinity) – HI-98194
Further Hanna supplies and comparisons
Matching methods and supplies
Match the exact instrument and method. These are separate products; check the supplied contents before adding another item.
- Hanna HI7040L Zero Oxygen Solution, 500ml — Use only the exact instrument/probe calibration procedure; zero-oxygen solution is not a galvanic membrane or electrolyte kit.



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