The MA886 digital refractometer uses the refractive index to determine sodium chloride concentration in aqueous solutions used in food preparation. The MA886 is not designed for measuring salinity in sea or aquarium water. Use MA887 for this application.The MA886 utilizes internationally recognized references for unit conversion and temperature compensation. It can display the measurement of NaCl concentration in 4 different ways: g/100 g, g/100 mL, Specific Gravity, and °Baumé.Temperature (in °C or °F) is displayed simultaneously with the measurement (on 3 of the ranges) on the large dual level display along with icons for "Low Power" and other helpful message codes.With the MA886, you can get a digital readout within seconds accurate to ±2 ppt with automatic temperature compensation (ATC).Design featuresFast, accurate results with digital dual level LED readout Easy measurement with just 2-3 drops of sample needed and results less than 2 secondsAutomatically temperature compensatedSimple one-point calibration using distilled or deionized water Easy to clean, stainless steel sample well with unit rated to IP65 as "dust tight" and protected against water jets Battery percent level indicator with automatic shut-off (batteries included)

The portable 4-in-1 MW306 PRO conductivity/TDS/NaCl (salinity)/temperature meter has won many fans worldwide with its reliable fast and easy operation. It is also very rugged and has IP67 waterproof rating.   It has a user-friendly interface for data exchange and as mentioned at the beginning, it is designed to measure four different parameters of water.  Ideal for use in hydroponics, horticulture, laboratories, food processing, water treatment and many other applications with demanding measurement requirements.