Milwaukee MA887 Digital Seawater Refractometer

Thousands of saltwater aquarium enthusiasts have dialed in the analysis with Milwaukee’s salinity refractometer. No more visual readings. Get a digital readout within seconds accurate to ±2 ppt with automatic temperature compensation (ATC). Fast, accurate results with digital dual level LCD readout
Easy measurement with just 2-3 drops of sample needed and results less than 2 seconds
Automatically temperature compensated
Simple 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)