- MA887 Digital Seawater Refractometer - Milwaukee
The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater providing for a much more precise evaluation. Each scale is temperature compensated.
- PSU - The newest type scale standard – Letters stand for Practical Salinity Units and is fast become the universal standard for seawater measurement
- PPT - The old standard of Parts Per Thousand of saturated salt. This is the oldest of the 3 seawater measurements scales
- S.G. - The current standard of Specific Gravity hydrometers and refractometers.
The Milwaukee Instruments MA887 digital refractometer is easy to calibrate and easy to read and provides highest accuracy possible for the measurement of seawater 3 specific scales. This is the type of accuracy demanded by today’s professionals and Milwaukee Instruments delivers.
Milwaukee Digital Seawater Refractometer Specifications:
|S.G.:||1.000 - 1.114||0.001||+/- 0.002|
|Temp:||0-80C / 32-176F||0.1 C/F||+/- 2 0.3 C/ +/- 5F|
Convenient, but can't be properly calibrated. By Matthew on 3/5/2020Matthew wouldn't recommend this product to a friendMine reads higher than expected, 35 ppt at 25C reads as 38 ppt. I've used 2 different calibration solutions including the one that comes with the refractometer. This is consistent so it's still usable, as i just mix saltwater to 38ppt. I still double check with a standard analog refractometer. This refractomer is calibrated with distilled/RODI water which is unacceptable in analytical terms. A seawater refractometer should be calibrated to seawater(35ppt@25C). I would describe this digital refractometer as precise but not accurate, while a standard refractomer is accurate but not precise, so it's better to use both.
doesn't worth it By wilson on 2/11/2020wilson wouldn't recommend this product to a friendI was looking for the best salinity tester , posted on different FB groups, most people recommended this one. I had Marine Pinpoint in the past. But this time I got this one and 2 days later the hanna. May it's just a lemon? IDK. But as many mentioned it reads 2 points off and worse that varies! Like I tested the calibration solution from hanna (35 ppt) and this Milwaukee reads 38, than 36, and some times 37. WTF! Horrible! And if you read the specs the manufacture actually says the precision is +- 2 ppt. What a joke! So why so many people recommended and like this? I guess just for the easy of use and they just don't care that much for precision or just never compared to any other good salinity tester. IDK. And yes, I loved the hanna. PinPoint probably still the best, but I had it years ago.
Must have unit By Ryan on 2/9/2020Ryan would recommend this product to a friendI’ve had mine for a little over a year now. In my opinion this is a must have piece of equipment. What do we hate doing the most?Water changes right? Anything that can make that easier is a blessing.
Now mine has been acting up and won’t power up from time to time but I think It’s the power button. I just have to be gentle and it works. It is still accurate as can be expected and I would by another without hesitation.
Just Awesome By Chad on 1/27/2020Chad would recommend this product to a friendMy local LFS recommended this as it is what they use for all their commercial maintenance. I love that it is a refractometor vs. electronic depending on calibration fluid. I tested with a few difference reference fluids after calibration with distilled/RO water. All were right on. This will be my reference device for salinity going forward.
best By Miles on 8/5/2019Miles would recommend this product to a friendbest for the money worth every penny so on so on. I could go on forever. listen you wanna do it cheap old school cool it makes the water usable but if you are ocd like I am and wanna test often and do not wanna mess with stuff or wonder if its the real numbers than get this.
Easy to use By Paul on 6/24/2019Paul would recommend this product to a friendThis unit is so easy to use, while mixing salt, quickly do multiple measurements. Quick and easy measurements during the week, glad I have this.
testing By Glen on 6/3/2019Glen would recommend this product to a friend[testing] I used my new Milwaukee MA887 Digital Seawater Refractometer yesterday (June 5, 2019) for the first time w/o issue. Today, when measuring for my second batch of salt, the unit would not power up at all. I checked the battery with my milti-meter and it was fine, but I swapped in a 100% Duracell battery just to be sure. No power and no luck. One and done. I purchased this unit in April and one use for my $125 is not a lot of bang for the buck.
Simple and easy By Fabian on 2/8/2019Fabian would recommend this product to a friendI got fed up with having to calibrate my refractormeter for every temp, so I went and got this.
Very easy to calibrate, however it always reads 1.026 with included standard and my old solution I had for my refractormeter seems I'm not the only one, no way to calibrate outside of using the RO water included.
Still much simpler reading.
Poor customer service from Milwaukee By Brian S on 1/25/2019Brian S wouldn't recommend this product to a friendI bought this refractometer from BRS a couple years ago . Initially it seemed to be working ok although it consistently read .001-.002 higher than actual predicted value based on its own control solution provided with the device . I even bought a second bottle to verify this . This initially wasn’t a big issue . I would just mix up my salt .001 higher to compensate for this . However , over time , it began to become unpredictable , sometimes .001 higher , sometimes .002 sometimes .003 .
I contacted BRS recently. They informed me that I was significantly past the warranty period of one year . However they were nice enough to construct an email written to Milwaukee on my behalf and cc’d to me . Long story short , ZERO response from Milwaukee . Not even a simple return email . Needless to say , I won’t be buying anything from Milwaukee any time soon .
Junk! By Richard on 1/5/2019Richard wouldn't recommend this product to a friendDid not work at all, won't ever power up. Have had MAJOR issues with the BRS RO/DI unit, now they sell me this completely non-operational unit with ZERO support. Could not be a larger waste of money! EXTREMELY disappointed with Milwaukee Instruments and BRS!
Excellent product By JHV on 11/24/2018JHV would recommend this product to a friendEasy to use
I have had this for almost 6 years and it works great.
Good price and well built.
When this one breaks, I will buy another.
Absolutely Needed By Ray on 11/10/2018Ray would recommend this product to a friendThe best and easiest salinity monitor anywhere! I've had mine over a year and batteries still going strong. Soo easy to use when making salt, checking and re-checking is a breeze. Even self-adapts to water temp... Great product and a must buy!
The spec says that the accuracy is +/- 0.002. That is not very good considering my range of interest is between 1.022 and 1.028. Comments?
When I calibrate the machine, the reading is 1.000, not 0 (zero) like the instructions say. The error messages in the instructions do not tell me what to do if a reading of 1.000 shows when trying to calibrate the unit. What is wrong?
There are three different settings to read the salinity with this unit. (PSU/PPT/S.G.). It sounds like you have your refractometer set to S.G. - Specific Gravity, which will read down to the 1000th decimal. You can change your reading by pressing the "Range" button until you get to the PPT-Parts per thousand reading, which will read zero at "0" and properly mixed saltwater at "35ppt". :-)
A question on the accuracy..obviously if it's off by .002 that could be detrimental to a reef aquarium in the long run depending on the nominal salinity value. Most reefs are between 1.024-1.026. However a lot of people seem to like this product. What's BRS experience with this? Do you double confirm samples?
Hi, Does the case come with the Milwaukee refractometer or is it a separate purchase?
This will not come with the case. Feel free to let us know if you have any further questions!
Do you sell the case that is recommended for it?
We sure do. I believe this is the case that you are looking for.