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pH • Conductivity • Dissolved Oxygen

HI98199 Waterproof Meter

For scientists and professionals who require precision in the field or on the production floor, the HI98199 is a versatile meter that can monitor pH, EC, and DO when paired with the respective probe. It’s the measurement-specific option you want with the rugged construction you need to give you years of flawless field data.


IP67 Rated Body

Long Lasting Battery

Long Lasting Battery

Quick Connect Probe

Quick Connect Probe


Coming This Summer

Optical Dissolved Oxygen Meter


Increased Traceabilty

Ensure that your data can be trusted with GLP data. Accessible through the menu, this data includes includes date, time, buffers/standards used for calibration, and slope characteristics of the last calibration.


Versatile Data Logging

The HI98199 allows you to store up to 45,000 continuous or log-on-demand samples with logging intervals from one second to three hours.


Dedicated Help Key

Clear tutorial messages and directions are available on-screen to quickly and easily guide you through setup and calibration.

Quick Connect Probe

Superior Field Usability

An IP67-rated, waterproof meter means that bad weather, splashes, and dust won't stop you from taking important measurements. The HI98199 is built to withstand immersion in water of 1m for up to 30 minutes. A large display and back light feature ensure that all of your important information is easily visible, no matter the amount of light.


Universal Port

The ultra-versatile USB-C port integrates seamless transfer of data. There is no need for software- simply connect a USB-C and send your data as a .csv to a memory stick, computer, or android device.


Quick Connect Digital Probe Auto-sensor Recognition

The Quick Connect fitting is designed for quick and easy installation of the probes. A watertight connection without threads make attaching and removing the probe simple. The probe and meter automatically recognize the sensors making it easy to change electrodes. Each probe transmits readings digitally to the meter, where data points can be displayed and logged.

Versatility when you need it.

Hanna’s pH probe is included with the HI98199 and the EC and DO probes can be ordered separately.

pH Electrode

pH Probe - HI827113 (included)

Up to a three-point calibration with five standard buffers and one custom buffer available
pH in mV option is useful for diagnostics
GLP data
Automatically temperature compensated readings
Conductivity (EC/TDS) Probe

EC Probe - HI763093 (optional)

Single-point calibration from six standards
Automatic Temperature Compensation
Salinity readings
Practical Salinity Scale (PSU) based on conductivity calibration
Dissolved Oxygen Probe

DO Probe - HI764103 (optional)

Display units in % saturation or ppm (mg/L)
Salinity compensation for saline waters
Built-in barometer
Automatic Temperature Compensation
Automatic polarization of probe at startup
Ready-to-use HDPE pre-tensioned membrane caps