GRIRIW Electronic Salinometer for Accurate Measurement Hydrometer for Home Kitchen Aquaculture Swimming Pools and Aquariums Yd

Meter-- suitable for saltwater, swimming pool, aquaculture, aquarium (seawater) and pond, food processing and products industry,meter tester

Digital hydrometer-- keeping your hands clean and can prevent pollution of water from the fish pond,automatic hydrometer

Aquarium refractometer-- the pen type meter is a precision instrument for testing the value of a solution,electronic salinometer

Aquarium hydrometers-- it is easy to read with high precision,saltwater refractometer

Aquatic refractometer-- the proportion of water sample can be automatically detected, the proportion, and conductivity of sea water are shown once,specific gravity hydrometer