The HI780 HC pH Checker Mini Photometer in Saltwater (6.3-8.6 pH) from Hanna Instruments is designed to accurately determine the pH level in applications such as saltwater aquariums and applications marine biology and swimming pools (salt electrolysis).

Checker HC mini-photometer for copper measurement up to 999 µg/L (ppm) .

HI 747 is supplied with 2 measuring cuvettes and their caps, 6 sachets of powdered reagent and the battery.

Checker HC mini photometer for measuring alkalinity (dKH) in seawater up to 20 dKH. HI772 comes with 2 measuring cuvettes and their caps, 1 bottle of liquid reagent for alkalinity and the battery.

Checker HC mini-photometer for the measurement of iron up to 5.5 mg/L (ppm). .

HI 747 is supplied with 2 measuring cuvettes and their caps, 6 sachets of powdered reagent and the battery.

Checker HC mini-photometer for measuring alkalinity in seawater up to 300 mg/L (ppm).

HI 755 is delivered with 2 measuring cuvettes and their caps, 1 bottle of liquid reagent for alkalinity and the battery.

Hanna Instruments ' HI784 Ammonia Checker Mini Photometer is specially designed to quickly and accurately determine ammonia levels in saltwater aquariums and marine applications . With a digital readout, you won't have to struggle to determine colors visually.

Checker HC mini-photometer for the measurement of calcium in seawater from 200 to 600 mg/L (ppm).

HI 758 is delivered with 2 measurement cuvettes and their cap, reagents for 25 tests, 1 plastic pipette, 1 automatic 100 µL pipette with tip and the battery.

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Hanna Instruments HI783 Magnesium Checker Mini Photometer is specially designed to quickly and accurately determine magnesium levels in saltwater aquariums and marine applications . With a digital readout, you won't have to struggle to determine colors visually.

Hanna Instruments Mini Marine Nitrate Photometer is specially designed to quickly and accurately determine high nitrate levels in saltwater aquariums and marine applications . With a digital readout, you won't have to struggle to determine colors visually.

Mini-photometer Checker HC nitrates allows the measurement of nitrates in seawater from 0.50 to 50 mg/L with an accuracy of ± 0.25 mg/L.

Mini-photometer Checker HC nitrites allows the measurement of nitrites in ultra-low range (up to 200 µg/L). HI764 comes with 2 measuring cuvettes and their caps, reagents for 6 tests and the battery.

Checker HC mini-photometer for measuring phosphates up to 2.50 mg/L (ppm) .

This mini-photometer is compatible for measurements in fresh water and sea water .

HI 713 is supplied with 2 measuring cuvettes and their caps, 6 sachets of powdered reagent and the battery.

Mini-photometer Checker Phosphates ULR allows the measurement of phosphates up to 0.9 mg/L (ppm).

This mini-photometer is compatible for measurements in fresh water and sea water.

HI774 comes with 2 measuring cuvettes and their caps, 10 sachets of powdered reagent and the battery.