Salinity Refractometer for Aquarium Seawater Marine Fishkeeping Salinity Tester 0-100PPT & 1.000-1.070 Salinity Hydrometer Slatwater Refractometer with Automatic Temperature Compensation (ATC)

Absolutely love this item! Easy to use and read after calibrated.

When I was first getting my fish tank setup, I knew that I needed a way to measure the salt level. This was perfect, as it comes with a little pipette, as well as microfiber cloth to clean it up a little. Just place a few drops of water on the black area, flip the lid down, and aim at a light source. You might need to calibrate the lens a little bit, but it has been very reliable in measuring my salt levels.

Works great. Easy to use

Does what is supposed to.

Works well and no defects

I imagine it’s hard to find a crappy one of these but some are way more expensive than others. Works exactly as my old 50 dollar one.

I trust this much more than I trust my TDS meter than has a salinity function. You have to calibrate it, but after calibration, it's dead on accurate. Any type of distilled water it hits exactly 0.

Don’t expect consistent results with this low budget device. I was not impressed with the graduations, listed in increments of twenty. Most of my readings fall into the 30-40 range. So it’s difficult to focus and count between graduations. I use this device monthly. But I have to calibrate it each time before I use it, unlike my other, more expensive one.