🌟 Calibrate like a pro—never second guess your seawater readings again!
The Brightwell Aquatics Refractometer Calibration Standard (RES60) offers a highly accurate 35 ppt salinity, 1.0264 specific gravity, and 1.3394 refractive index reference, designed to precisely calibrate seawater refractometers, hydrometers, and other density measuring devices, ensuring reliable and consistent measurements every time.
R**N
A must for salt water tanks
This is a life saver - literally. I ordered a new refractor and without this could have killed everything by drastically changing the salt % in my reef tank .
M**Y
As expected
Measured as expected.
B**E
Accurate calibration std.
Advertised as 35 PPT and it was spy on, verified against 4 refractometers and 3 electronic readers. Brighter ll is always as advertised, unlike a few competitors that can be all over the map
L**R
Exact match to another brand
I just got this to double check that my refractometer was calibrated correctly. I had another brand of calibration fluid and wanted to make sure it was still good. This fluid confirmed exactly the same as the other one. And a better price than the others.
B**.
Perfect for the price, does the right job.
It does the job well, reading the right SG works on my refractometer. I only wonder how accurate the drops are when putting them on the glass, I would have liked to use a syringe for the exact amount of fluid.
T**J
Mine arrived at specific gravity
Calibrated my meter with it made a minor adjustment and then checked with distilled water and was spot on.
S**Y
Get it to ensure accuracy
I got this when I ordered my refractometer. The fluid is set to a specific salinity (not 0, its 1.0264) that allows to to calibrate your refractometer. Worth it to ensure accuracy.
M**D
Is this a joke?
Took weeks to arrive and when it finally did it was leaking in the sealed bag it arrived in. Amazon was quick to refund me without having to return. Thank you Amazon. There was a usable amount left in the bottle so I wanted to try it out. I had calibrated using distilled water before but wanted to make sure my tool was accurate so I bought this. Half cup sea salt to one cup of water normally gets me pretty close to 35 parts per thousand and that's what my refractive meter shows after being calibrated with distilled. This stuff is reading 76 or 77 parts for thousand salinity so it's dangerously and comically incorrect. All I can say is wow. If this is what I use to calibrate my tool in the beginning I would have been in a world of hurt. Luckily it's so far off that it wouldn't have gone unnoticed.
Trustpilot
2 months ago
2 months ago
