Compensation Features:

Insert the blank cuvette into the Mi4XX photometer for zero calibration

reliable readings to ensure the health and vitality of your fish

5 °C accuracy

everyday protection from what’s in your tap water

Milwaukee MA887 Digital Seawater Refractometer CAREKITPHCON Compensation Features: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). WHAT PEOPLE ARE SAYING "This is a terrific addition and you'll want a digital refractometer if you spend any time at all with saltwater aquariums. Highly recommended." "This is a must for any even remotely serious