Wisecoco Salinity Refractometer, Double Scale 0‑100 PPT 1.000‑1.070 Portable ATC Salinity Meter, for Aquarium Marine Monitoring Agriculture Fish Farming

DURABLE MATERIALS: The brine refractometer is made of aluminum and ABS rubber, which is rust proof, non staining, wear resistant and durable

ATC FUNCTION: Brine refractometer with automatic temperature compensation minimizes the effect of temperature on accuracy, allowing you to obtain accurate results

DUAL SCALE: The seawater refractometer has a dual scale specific gravity, allowing you to obtain results in two different units with a single test

BROAD USE: The salinity refractometer is designed to measure the salinity of water and brine and is ideal for aquariums, marine monitoring, agriculture, fish farming, and brackish pools

EASY TO USE: After calibration, place 2-3 drops of sample solution on the prism, facing the light, and then you can get an accurate reading through the optical eyepiece.