Precision In Your Palm: Reliable water testing anywhere
The HI98594, designed to withstand harsh environmental conditions, measures 14 parameters and is ideal for field measurements. Within the Hanna Instruments family of multiparameters, it stands out for its ability to measure turbidity. The meter meets the IP67 standard (30-minute immersion at a depth of 1 m) and the multi-sensor probe is sealed against water and dust, meeting the IP68 standard (continuous immersion in water). HI98594 is an ideal instrument for your sector: Surface water, Sea water, Wastewater, Education & Research, Ground Water, Aquaculture, Construction & Environmental Remediation.

Measure 14 parameters:
HI98594 can display from 1 to 12 parameters simultaneously, selectable by the user.
- pH
- mV
- ORP
- Dissolved Oxygen (ppm)
- Dissolved Oxygen (%)
- EC
- EC (absolute)
- Resistivity
- TDS
- Salinity
- Seawater σ
- Turbidity
- Atmospheric Pressure
- Temperature
A multi-sensor probe HI7698594
HI7698594 has three screw-type connectors that are color-coded for easy and automatic sensor identification. It is supplied with a protective shield, and its waterproof design makes it ideal for difficult applications.
High precision wherever you go
- The compact size of HI98594 ensures easy portability and convenient use, even in the most challenging environments
- HI98594 is supplied with a rugged carrying case, designed to provide years of use and maximum protection. The inside compartment of the carrying case is thermoformed to securely hold and protect all of the components
Data logging
- Automatic storage for up to 50,000 samples at intervals (1 second to 3 hours)
- Log-on-demand to store measurement data.
- Access .CSV file via computer
Smart solutions for smarter water testing
Log on demand and automatic logging for all parameters: HI98594 allows to log one data point or continuously log at selected time intervals. All logs have the option to store data into a named lot and the ability to add comments.
Bluetooth® 5.0 Connectivity and Hanna Lab: Using the Bluetooth connection and Hanna Lab app, logged data batches can be easily transferred to a smart device for review or shared as an e-mail. Automatic firmware updates for the meter via the Hanna Lab app.
Quick-DIN for waterproof connection
The meter connects to the multiparameter probe through a single waterproof connector, making attaching and removing the probe quick and easy. The meter automatically detects the probe when connected.
Data Transfer & Charging
The USB Type-C port provides for easy data transfer to a memory stick, PC, or other compatible devices and is used to charge the internal lithium-ion battery.
Dual power supply
The instrument operates with a built-in lithium-ion battery. When the rechargeable battery is low the meter will automatically switch to 1.5 AA alkaline batteries.