Description
A Portable Multiparameter
Water Quality Meter you can count on in the field

Perfect for many industries and applications:
- Environmental Water Quality
- Water Treatment
- Industrial
- Laboratory
- Education and Research
- Beverage Manufacturing
- Aquaculture
- Municipalities
Features
- Ideal for environmental and field measurements
- Rugged design includes water-resistant meter and waterproof probe
- Meter features an easy-to-read graphic backlit display with on-screen graphing capability
- User-friendly and easy to operate. Testing is hassle-free with this meter’s intuitive keypad and straightforward navigation menus
- Multiple cable length options are available
- Monitors up to 14 water quality parameters (7 measured and 7 calculated) including pH, ORP, turbidity, EC/TDS, dissolved oxygen, resistivity, salinity, seawater σ, atmospheric pressure, and temperature
- Each parameter is completely configurable
- Achieve instantaneous conductivity and turbidity measurements
- Meter is enclosed in an IP67-rated waterproof casing and can be immersed in water at a depth of 1 m for up to 30 minutes
- Multisensor probe (HI7698594) is IP68-rated for continuous submersion in water and is totally sealed against water and dust
- This meter will automatically detect when the probe is securely connected. Meter attaches to the multisensor probe through a single waterproof quick din connector which makes fastening and removing the probe convenient
- The multisensor probe is supplied with pre-installed pH/ORP, EC, turbidity, and optical dissolved oxygen sensors. These replaceable field sensors are automatically recognized by the meter
- The optical dissolved oxygen sensor uses a smart cap that has an RFID tag that stores calibration coefficients unique to each cap. The RFID keeps track of the age of the cap and alerts the user when it’s time for replacement
- Changing a sensor is fast and simple. All field sensors are constructed with a replaceable, screw type connector and are color coded for easy identification
- pH, EC, and dissolved oxygen measurements are automatically compensated for temperature variations
- This meter is designed with a built-in barometer for percent saturation and dissolved oxygen measurement compensation. All dissolved oxygen concentration measurements are automatically compensated for barometric pressure and salinity
- Quick calibration provides a speedy, single point calibration for pH, conductivity, and dissolved oxygen. Standard calibration options are available for pH up to three points, conductivity at one-point, dissolved oxygen up to two points, and turbidity with three provided standards
- Manufactured with a dual power source battery system for extended use in the field. This meter operates on a built-in lithium-ion battery. Once the rechargeable batteries run low, the meter will automatically switch and default to the 1.5 AA alkaline batteries

Achieve peace of mind with water analysis results at your fingertips
Equipped with Bluetooth® 5.0 wireless technology. Gain full visibility and traceability over GLP data. Simply connect your phone or tablet via Bluetooth® and use the Hanna Lab App to transfer, review or email batches of logged data.
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.
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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.
















