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HI98319 Marine Salinity Tester


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Add 11+ HI98319 Marine Salinity Testers to your cart and get 1 free, the credit will apply at checkout.  Add 22+ units to get 2 free, etc. 

  • Designed to bring simplicity to salinity testing during the any process, the HI98319 Marine Salinity Tester measures conductivity (EC) to determine the salinity of natural and artificial seawater. Within seconds, the salinity and temperature are digitally displayed on the LCD. 

    • Displays results in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S.G.). 

    • Comes with all the necessary solutions and batteries- everything you need to get started measuring right away. 

    • Ideal for testing salinity in aquariums, field, and industrial settings.  

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    Better Features for Better Testing

    An onscreen stability indicator ensures the highest level of confidence in your results. The selectable auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on.

    Pocket Sized

    The compact size makes the HI98319 Marine Salinity Tester ideal for on-the-go testing. The multilevel LCD display provides at-a-glance salinity and temperature readings from any angle while dual button operation streamlines the testing process for any user.

    Long Battery Life

    The included CR2032 Li-ion battery provides up to 100 hours of continuous use. The battery icon will blink to let you know it is time to change the battery so you never miss a measurement.

    Graphite Sensors

    Unlike stainless steel sensors, graphite sensors reduce polarization effects and does not oxidize for more reliable and accurate readings.

    Durable Casing

    Designed to withstand the knocks, drops, and spills of real life, the waterproof body ensures top performance in any environment. These meters are totally protected against dust and water intrusion from any direction. 

    Integrated Temperature Probe

    Conductivity measurements are very sensitive to temperature variations. HI98319 has an exposed temperature sensor to ensure fast, accurately compensated readings even during sudden temperature fluctuations.

    We believe that buying a tester should be simple. Your HI98319 Marine Salinity Tester is equipped with everything you need for successful testing right out of the box.

    35.00 ppt Calibration Standard Sachet Solution (4)

    When performing a calibration, it is important that the correct buffers are used. We include some starter buffer to get you going. The single-use sachets are individually sealed so you use fresh buffer each time you calibrate.  

    Protective Case

    Your tester comes with a complimentary carrying case to keep your tester safe from potential drops or bumps when not in use. 



    0.0 to 70.0 ppt (g/L)

    0.0 to 70.0 PSU

    1.000 to 1.041 S.G.


    0.1 ppt (g/L)

    0.1 PSU


    Accuracy (@25ºC/77ºF)

    ±1 ppt for 0.0 to 40.0 ppt; ±2 ppt for readings over 40.0 ppt

    ±1 PSU for 0.0 to 40.0 PSU ; ±2 PSU for readings over 40.0 PSU

    ±0.001 S.G.

    Temperature Range

    0.0 to 50.0°C; 32.0 to 122.0°F

    Temperature Resolution

    0.1°C; 0.1°F

    Temperature Accuracy (@ 25°C/77°F)

    ±0.5°C; 1°F


    automatic, single point 35.00 ppt 


    ppt - International Oceanographic Tables

    PSU - Standard Methods for the Examination of Water and Wastewater, 2510 B, Electrical Conductivity Method

    S.G.- Standard Methods for the Examination of Water and Wastewater, 2510 C, Density Method


    68 g (2.4 oz.) without battery

    Temperature Compensation

    automatic from 5 to 50.0 ºC 

    Battery Type / Life

    CR2032 3V Li-Ion (1 pc.)/ approximately 100 hours of continuous use 


    0 to 50 °C (32 °C to 122 °F); RH max 100% 

    Ordering Information

    Each meter is supplied with: CR2032 battery (inside the meter), Storage / Protection sleeve, Instruction manual, Quality certificate, and 35.00 ppt calibration standard sachet (4 pcs.)