Top 10 Refractometers for saltwater aquarium in 2026

AQUA-MEDIC - Calibration solution 35 ppt for...

(3 reviews)

7.85 €

60ml bottle of 35 ppt calibration solution for refractometer.

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• 3 en stock

60ml bottle of 35 ppt calibration solution for refractometer.

MILWAUKEE - Precision Refractometer

(8 reviews)

104.90 €

The refractometer is an optical instrument that uses refractive index measurement to determine the salinity of natural and artificial seawater, seawater or brackish intermediates.

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The refractometer is an optical instrument that uses refractive index measurement to determine the salinity of natural and artificial seawater, seawater or brackish intermediates.

AQUA MEDIC - LED refractometer

49.99 €

The Aqua Medic LED Refractometer is a precision optical instrument for the exact determination of the amount of salt in saltwater aquariums . A few drops allow the determination of the salt concentration in a few seconds. It can be read either as absolute quantity of salt (salinity) in ‰, ppt or as density.

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• en réappro

The Aqua Medic LED Refractometer is a precision optical instrument for the exact determination of the amount of salt in saltwater aquariums . A few drops allow the determination of the salt concentration in a few seconds. It can be read either as absolute quantity of salt (salinity) in ‰, ppt or as density.