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Hanna Instruments Canada
Customer Support: (800) 842-6629

HI98325 Groline Salinity Waterproof Tester


In stock

The HI98325 is a compact, pocket-sized, salinity tester designed to measure salinity levels in irrigation water. This waterproof tester is the ideal tool in agricultural areas such as coffee farms, orange farms, watermelon farms, tea and rice farms where level salinity values are vital to crop management

  • Exposed Temperature Probe for Fast Response
  • Measures salinity up to 70.00 ppt
  • Waterproof and designed to float



Salinity measurements calculated from a conductivity measurement using known tables

Choice of measurement units displayed in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S.G.)

Automatic Temperature Compensation (ATC), displays temperature in ℃ or ℉

Amperometric graphite sensor reduces polarization effects and does not oxidize

Large LCD displays stability indicator, low-battery indicator, and calibration tags

Dedicated calibration button with automatic recognition of the 35.00 ppt calibration solution in calibration mode

Supplied complete with meter and calibration sachets in a durable plastic storage case.

Additional information

Weight 0.27 kg


Temperature Accuracy

±0.5°C; ±1°F

Temperature Range

0.0 to 50.0°C; 32.0 to 122.0°F


SKU HI98325
Name Groline Salinity Waterproof Tester – HI98325
Salinity Range 0.0 to 70.0 ppt (g/L)
Salinity Resolution (ppt) 0.1 ppt (g/L)
Salinity Accuracy (ppt) ±1.0 (0.0 to 40.0) ; ±2.0 (40.0 to 70.0)
Salinity Calibration (ppt) all ranges calibrated with 35.00 ppt salinity standard
Salinity (PSU) Range 0.0 to 70.0 PSU
Salinity (PSU) Resolution 0.1 PSU
Salinity (PSU) Accuracy ±1 PSU for 0.0 to 40.0 PSU ; ±2 PSU for readings over 40.0 PSU
Specific Gravity Range 1.000 to 1.041 S.G.
Specific Gravity Resolution 0.001 S.G.
Specific Gravity Accuracy ±0.001 S.G.
Temperature Compensation Automatic from 5.0 to 50.0°C (41.0 to 122.0°F)
Salinity Method ppt – International Oceanographic Tables, 1966
PSU – Standard Methods for the Examination of Water and Wastewater, 2520 B, Electrical Conductivity Method
Standard Methods for the Examination of Water and Wastewater, 2520 C, Density Method
Temperature Range 0.0 to 50.0°C; 32.0 to 122.0°F
Temperature Resolution 0.1°C; 0.1°F
Temperature Accuracy ±0.5°C; ±1°F
Automatic Shut-Off user selectable 8 minutes, 60 minutes, or disabled
Battery Type/Life CR2032 3V lithium ion / approximately 100 hours
Environment 0 to 50°C (32 to 122°F); RH max 100%
Dimensions 160 x 40 x 17 mm (6.3 x 1.6 x 0.7“)
Weight 68 g (2.4 oz.) without battery

Ordering Info

HI98325 is supplied with protective cap, 35.00 ppt calibration solution sachet (4), CR2032 battery (1), plastic storage case, instrument quality certificate and instructional manual.


Groline Salinity Waterproof Tester – HI98325