Salinity Refractometer for Seawater and Marine Fishkeeping Aquarium 0-100 PPT with Automatic Temperature Compensation

This is a great product! The readings are accurate and very easy to read, even for beginners. The instructions included were clear and helpful, making setup and calibration simple. It also comes with a strong, protective case that keeps the refractometer safe when not in use — a really nice touch for long-term durability. Absolutely no complaints here. Highly recommend for anyone working with seawater or saltwater aquariums.

Durable and easy to use . Accurate readings

This thing was so inexpensive and it seems to be accurate. Only thing is that it loses calibration quickly. Not sure why. Does the screw come loose just sitting in the case? I just calibrate it quickly with some calibration solution. Kinda annoying, but hey this thing was so inexpensive.

Great product fast shipping

The results are accurate and easy to read. Make sure to purchase calibration solution for the best results. This keeps my water salinity right where I need it to be.

It’s inexpensive and works great! Everything seems to be of good quality, no complaints at all!!

My fish are happy and healthy. I was scared that this would be hard to use since I just started keeping fish, but it is very simple and easy. I don’t know how easy it would be to use with glasses, but I couldn’t say. Very quick and definitely more trustworthy than other brands.

Super easy to use and was already calibrated when it arrived.