Brightwell Aquatics Refractometer Calibration Standard, Accurate Reference for The Calibration of Seawater Refractometers, Hydrometers & Other Density Measuring Equipment, RES60
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This item is eligible for return within 30 days of receipt
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Availability:
20 left in stock
Arrives
Jul 3 – Jul 4
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Features
- Accurate reference for the calibration of seawater refractometers, hydrometers & other density measuring equipment
- 35 ppt Salinity
- 1. 0264 Specific Gravity
- 1. 3394 Refractive Index
- 53 uS/cm at 25 deg c
Is Discontinued By Manufacturer : No
Product Dimensions : 0.79 x 0.79 x 4.72 inches; 2.72 Ounces
Item model number : RES60
Date First Available : December 31, 2017
Manufacturer : Brightwell Aquatics
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 3 – Jul 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This product calibrates my refractometer to 35ppt so I’m able to accurately test my saltwater aquarium’s salinity.
Reviewed in the United States on November 19, 2022 by Jenny B.
I used this product and it proved the solution I had for years had gone bad. My old solution was off by .004. Despite properly shaking both old and new solutions the refractometer was off by a specific gravity of .004. I read 1.021 on my old solution and 1.025 with my new solution. This product states to replace your solution after time. They are right to recommend this. Also, for newbies...remember the 35 ppt Salinity = 1.0264 on your specific gravity. The left side of you refractometer is for specific gravity, the right side is the reading you set to 35 after 45 seconds. Instructions Shake product well before using. Clean Refractometer prism slide with fresh distilled water. Dry completely with soft clean dry cloth. Place several drops of Brightwell Refractometer Calibration Standard fluid on the slide. Wait 45 seconds and calibrate to 35 ppt Salinity.
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Reviewed in the United States on October 22, 2018 by Keith Lawson
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
Reviewed in the United States on July 13, 2022 by Bruce Musgrove
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.
Reviewed in the United States on August 19, 2020 by Bryant C.
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.
Reviewed in the United States on October 13, 2020 by SaltwaterTony
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.
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Reviewed in the United States on February 9, 2023 by md md
Good value for your money
Reviewed in the United States on December 5, 2020 by Jose Hernandez
as promised thank you
Reviewed in the United States on November 18, 2019 by D MOORE