Reef Casa Refractometer

This is simple the best refractometer money can buy. An essential piece of equipment for every salt water aquarium keeper ! With this device you can easily measure your aquariums salinity with confidence.
Highly precise and accurate and so easy to read. With proper care this device will outlive the life of your aquarium.

Built in ATC, automatic temperature compensation & trusted by marine aquarist globally

Range: 1.000 – 1.070 SG