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Hanna Marine Salinity Tester HI-98319

Hanna Marine Salinity Tester HI-98319

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The new HI-98319 waterproof salinity and temperature tester from Hanna Instruments is perfect for any saltwater aquarium. A more accurate alternative to refractometers, this tester uses conductivity to determine salinity levels of natural and artificial seawater. Ideal for testing salinity in salt water aquariums, it is quick and easy to use and provides digital readout of both salinity and temperature.

Salinity results are displayed in either parts per thousand (ppt), Practical Salinity Units (PSU), or Specific Gravity (SG).The marine salinity tester is supplied complete with batteries and solutions allowing you to start measuring right away. Salinity should be checked regularly in aquariums. As Oceans are very stable environments, where there is not a lot of day to day change in the water parameters, fish can respond negatively to even small changes in salinity. Also displays temperature.


Key Features: 

Fast and Accurate Readings
The HI-98319 Tester provides users with fast and accurate salinity readings in ppt, PSU or SG. The Checker Plus features an easy to read LCD screen. For the most accurate results the probe should be rinsed with purified water each time before placing in calibration solution or sample to be tested

Also Displays Water Temperature
The salinity tester also gives a temperature reading of the tested water in either centigrade or fahrenheit to a decent level of accuracy.

Indicator Light to Show Low Battery 
The meter features a low battery indicator. When the battery is running low, the battery indicator will blink on the LCD. Simply change the CR2032 Li-ion battery by removing the battery cover located on the back of the meter.


  • HI-98319 Salinity Tester
  • CR2032 battery (installed)
  • Storage/protection shield
  • Instruction manual
  • Quality certificate
  • 35.00 ppt calibration standard sachet (x 4)


Technical Specification

Model HI-98312
Suitability Marine
Tests For Salinity and Temperature
Range 0 to 70 ppt
0 to 70 PSU
0.001 to 1.041 SG
0 to 50 °C
32 to 122 °F
Resolution 0.1 ppt
0.1 PSU
0.001 SG
0.1 °C
1 °F
Accuracy ±1.0 ppt
±1.0 PSU
±0.5 °C
±1.0 °F
Weight 68g
Battery CR2032 Li-ion
Product Highlights
  • Designed to accurately test salinity levels in marine aquariums
  • Sturdy compact meter designed for direct sample testing
  • Fast accurate readings in PSU, SG or ppt
  • Reads temperature in °C or °F
  • Warning light to indicate when battery levels are low
  • Highly accurate
  • Large LCD