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10 bestHanna Instruments Instrumentsof December 2025

112M consumers helped this year.

1

WLR Industries Hanna HI774 Phosphate Ultra Low Range Colorimeter for Marine and Saltwater appllications Phosphate checker
WLR Industries Hanna HI774 Phosphate Ultra Low Range Colorimeter for Marine and Saltwater appllications Phosphate checker

WLR Industries

9.8

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2

Hanna Instruments High Range Nitrate Checker HI782
Hanna Instruments High Range Nitrate Checker HI782

Hanna Instruments

9.6

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3

Hanna Instruments HI 98130 Waterproof pH/Conductivity/TDS Tester with ATC, High Range
Hanna Instruments HI 98130 Waterproof pH/Conductivity/TDS Tester with ATC, High Range

Hanna Instruments

9.4

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4

Hanna Instruments HI98128 pHep 5pH/Temperature Tester, 6-25/64" Length X 1-19/32" Width X 1" Height
Hanna Instruments HI98128 pHep 5pH/Temperature Tester, 6-25/64" Length X 1-19/32" Width X 1" Height

Hanna Instruments

9.2

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5

Hanna Instruments HI701 Checker HC Handheld Colorimeter for Free Chlorine
Hanna Instruments HI701 Checker HC Handheld Colorimeter for Free Chlorine

Hanna Instruments

9.0

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Related productsUp to 9% off

Hanna Salinity Tester HI98319

Hanna Salinity Tester HI98319

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Hanna Instruments HI70300L pH/ORP Electrode Storage Solution, 500mL Bottle

Hanna Instruments HI70300L pH/ORP Electrode Storage Solution, 500mL Bottle

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Hanna Instruments HI758 Marine Calcium Checker Test Kit - Saltwater Aquariums

Hanna Instruments HI758 Marine Calcium Checker Test Kit - Saltwater Aquariums

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Hanna Marine Ammonia Checker HI784

Hanna Marine Ammonia Checker HI784

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6

Hanna Instruments HI73127 Polypropylene Spare Electrode with Pin Connection, 0 to 14 pH
Hanna Instruments HI73127 Polypropylene Spare Electrode with Pin Connection, 0 to 14 pH

Hanna Instruments

8.8

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18% off

7

Hanna Instruments HI98301 DiST1 EC and TDS Tester, 0.5 TDS Factor, 1999 mg/L (ppm), 1 mg/L (ppm) Resolution, +/-2% Accuracy by Hanna Instruments
Hanna Instruments HI98301 DiST1 EC and TDS Tester, 0.5 TDS Factor, 1999 mg/L (ppm), 1 mg/L (ppm) Resolution, +/-2% Accuracy by Hanna Instruments

8.5

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8

Hanna Marine Alkalinity Checker HI755
Hanna Marine Alkalinity Checker HI755

Hanna Instruments

8.2

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9

Hanna Instruments HI 711 Checker HC Handheld Colorimeter, for Total Chlorine
Hanna Instruments HI 711 Checker HC Handheld Colorimeter, for Total Chlorine

Hanna Instruments

8.0

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10

Hanna Marine Magnesium Checker® HC HI783
Hanna Marine Magnesium Checker® HC HI783

Hanna Instruments

7.7

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