Handheld Salinity Refractometer for Marine Aquarium

You are purchasing a high quality refractometer for testing the salinity of your marine aquarium water.

A refractometer is by far the most accurate way of measuring the salinity in your aquarium.

This refractometer is automatic temperate compensation, meaning the temperature of the aquarium water sample will not effect the reading.

This refractometer comes complete with hard carry case, pipette for water sample, calibration screw, cleaning cloth and instruction manual.