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๐ Calibrate like a pro, measure like a master!
The Continuum Aquatics Refractometer and Hydrometer Calibration Standard (60ml) is a precision solution designed to provide an exact reference for calibrating seawater refractometers, hydrometers, and density measuring instruments. Featuring 35 ppt salinity, 1.0264 specific gravity, and a 1.3394 refractive index, it ensures your aquatic measurements are scientifically accurate and reliable.



| Customer Reviews | 4.0 out of 5 stars 317 Reviews |
L**I
Great product
Really good product come fast and accurate my reflectometer was in 1.024 but thank to this product i fix it again (1.026) really easy to use
B**Y
Works well
Good solution for testing my tanks
G**Z
Way off!
Beware...this product was not accurate. I opened it fresh & calibrated, It was way off. I verified & yep bad batch. Couldn't return because window closed. So test asap
D**N
Good calibration fluid for salinity
This calibration fluid by reagents matches with Bulk Reef Supply, Refracto Juice, Calibration fluid for salinity. Faster shipping than BRSโs.
E**Z
Does what it needs to do
So I used this calibrate my refractometer for my reef tank. turn out i was a bit high and had to adjust the calibration screw to get the correct reading. 5 stars from me for ease of use and price.
J**H
update. LFS SG was off. not as bad as i thought.
tested with another solution as well. both are around 1.026.
B**S
Great for calibrating refractometers and digital salimeters.
Bottle was full to top which was nice. This will last me at least a year.
M**T
SG is 1.016 not 1.026
Bought this to calibrate my refractometers. They all said 1.015-1.016. If you took this solution as 1.026 then water would read 1.010. Itโs ok that itโs 1.016; just correctly label what you sell yo.
D**T
Works as expected
Works great. Calibrated my refractor. More accurate than distilled water.
S**L
Does the job
Worked well to calibrate my refractometer
Y**I
Calibration liquid
Great calibrated my refractometre so I know my salinity is correct was delivered very fast
A**R
donโt buy
It is off by a couple of points. The salinity of the fluid is supposed to be 1.0264 but it is way lower around 1.023. It is a waste of money.
T**L
DO NOT BUY
not 1.026 its way to low. do not buy!!!
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