Review on 🔬 Milwaukee MA887 Digital Salinity Refractometer with Automatic Temperature Compensation, Yellow LED, 0 to 50 PSU, +/-2 PSU Accuracy, 1 PSU Resolution (color may vary) - Enhanced SEO by Danielle Albanese

I have a 65 gallon seawater tank and use it to measure salinity. I can only say WOW! I should have gotten this sooner. After a simple no-salt calibration, this accurately reflects the salinity and temperature of my water. This is much better and more reliable than a swing arm hygrometer. I've had it for 4 months now and do weekly water changes. I haven't had to change batteries yet. Thank you to previous reviewers whose advice I based my purchase decision on. This is an amazing addition and you will need a digital refractometer if you are into marine aquariums. Highly recommended.