Happyyami Electronic Salinometer Water Precision Hydrometer for Measuring Salt Concentration Aquaculture Swimming Pools and Food Processing Yd

Seawater refractometer: the pen type meter is a precision instrument for testing the value of a solution,aquatic refractometer

Salt tester for aquarium: the proportion of water sample can be automatically detected, the proportion, and conductivity of sea water are shown once,digital hydrometer

Electronic hydrometer: keeping your hands clean and can prevent pollution of water from the fish pond,number

Refractometer saltwater tank: it is easy to read with high precision,seawater

Salt water gravimeter: suitable for saltwater, swimming pool, aquaculture, aquarium (seawater) and pond, food processing and products industry,salt water