Levemolo Electronic Salinometer Water for Accurate Salt Measurement Aquaculture Swimming Pools and Food Processing Yd Precision Hydrometer Automatic Detection

Saltwater refractometer-- the pen type meter is a precision instrument for testing the value of a solution,saline water

Digital hydrometer-- suitable for saltwater, swimming pool, aquaculture, aquarium (seawater) and pond, food processing and products industry,seawater

Aquarium hydrometers-- it is easy to read with high precision,salt tester for aquarium

Food hydrometer-- keeping your hands clean and can prevent pollution of water from the fish pond,electronic salinometer

Aquarium refractometer-- the proportion of water sample can be automatically detected, the proportion, and conductivity of sea water are shown once,salt water