Simple to use - just follow the instructions By Grant on 2/26/2013
Grant would recommend this product to a friend
Well constructed and simple to use. Just make sure you calibrate with the provided solution - there is a large reminder sticker on the box. So far, appears to work exactly as intended.
A MUST PURCHASE By Chris on 2/26/2013
Chris would recommend this product to a friend
I've been reefing for 4 years and always used a cheap plastic hydrometer. I haven't seen great growth in any livestock. Decided to dive into this refractometer. Glad I did. My plastic meter read 1.025. Tried the refractometer and it read 1.030! Made the adjustment and everything is thriving. A must purchase for little cost!
Inexpensive and accurate By Jared on 1/27/2013
Jared would recommend this product to a friend
You can't beat the price and the accuracy of this refractometer. The calibration fluid that is included is an added bonus. The lines are large and easy to read.
Not sure By Testor on 1/24/2013
Testor wouldn't recommend this product to a friend
Printed instructions with ATC unit say to calibrate with RO/DI water. When I do so, the readings on the ATC match the readings I get on a digital Hanna refractometer. However when I test the calibration fluid that came with this unit, it's reading is 1.028.
So do I assume the calibration fluid is off, or trust it, and recalibrate the optical ATC unit, and assume the digital Hanna is off.
I know BRS site says to use calibration fluid to calibrate.
SCIENCE By Kerry on 1/24/2013
Kerry would recommend this product to a friend
Forget your little floaty tool. This couldn't be easier to use or more exact. Every reefer needs one of these!
Great price on sale for Christmas By Jerry on 1/23/2013
Jerry would recommend this product to a friend
Great product and super cheap at Christmas, bought 2.
Just buy it and save ur money on Hydrometers By Aquaman75 on 12/19/2012
Aquaman75 would recommend this product to a friend
I brought a Hydrometer from BFS and it worked great for about two months and then it started to give me reading i just know was off. I did a little research and got the refractometer. the best buy for reading the salinity for my water will never look back.
Simple, Soild, Reliable By Bryan on 12/18/2012
Bryan would recommend this product to a friend
This is probably one of the best values for a refractometer. It's a rock solid unit with a professional case and dead on accuracy.
The included calibration fluid worked and I can confirm it registers the same parameter on an electronic refractometer. This should be the first item any saltwater aquarium owner should buy.
Solid as can be By Frederick on 12/16/2012
Frederick would recommend this product to a friend
This refractometer does what it's supposed to do. It feels like a quality build and reads accurately. Just remember to use the calibration solution and do not calibrate to 0.00 or using ro/di water.
Calibration solution is great By Randal on 12/16/2012
Randal would recommend this product to a friend
This tool is great and consistent. Comes well packaged and feels well worth the money. The reason why I am not giving it a five star review is because the lines can sometimes be hard to read.
easy to use By preston on 12/9/2012
preston would recommend this product to a friend
Very easy to read compared to my plastic hydrometer . It does what it claims
Cheap insurance By Nick on 12/7/2012
Nick would recommend this product to a friend
Very easy to use. Easy to calibrate. Much more accurate then swing arm type hydrometer. Wish the eyepiece was a little bigger, but stil a great product.