At last a refractometer I trust. I have a hydrometer a float type and a visual prism type refactor non matched it was a guessing game not any more. I love it!
Verified purchase: Yes | Condition: New
Bought because eyes are getting older. Bigger than I thought it would be. Calibration solution for seawater is only showing a 1.024 instead of 1.025. Not sure which is wrong. Solution or unit itself. But within operating tolerances. Easy to use but bought so I could get precise measurements. Still have some concerns about its readings.
Verified purchase: Yes | Condition: New
Easy and quick to measure. Steady readings. Much better than optical refractometer for indoor use, since does not need a strong light source like the optical.
Verified purchase: Yes | Condition: New
Great product. Comes with two testing/calibration solutions (1.000 and 1.025) so you can make sure it is reading correct every time. I wish every aquarium tester was like this one.
Verified purchase: Yes | Condition: New
This product is very user friendly, easy to use and give accurate salinity measurement.
Verified purchase: Yes | Condition: New
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