Thousands of saltwater aquarium enthusiasts have dialed in their analysis with the MA887 Digital Seawater refractometer. No more visual readings, get a digital readout within seconds.

The Milwaukee Digital Seawater Refractometer is fast and easy-to-use with a response time under 2 seconds. Maintenance is a breeze with an easy-to-clean sealed flint glass prism and stainless steel well. Ideal for determining the salinity of natural and artificial seawater, ocean water or brackish intermediates.

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 reef tank hobbyist."

"All I can say is WOW! I should have had this sooner."

Design features

• 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)

Thank you for considering Milwaukee to help you take your results to the next level.