- 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|
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!
Excellent tool for serious reefers By Rodney on 10/20/2018Rodney would recommend this product to a friendI have been using this device for a month and a half. Milwaukee has created a great tool for reefers who want to accurately monitor their salinity levels. The process is so simple; just use a pipette to add a little water from your tank to the testing zone, then hit one button to get your reading. If you are serious about your reef, you should definitely consider buying this product. I like to test both of my reef tanks and freshly mixed saltwater, which I can now do in a couple of minutes.
I recommend storing this unit in the box it came in, but cover the top of the unit with a soft cloth. The soft cloth is useful for keeping the glass from getting scratched in the testing zone, and you can wipe the glass off after each test. I generally suck up most of the water after testing with the pipette and then wipe the remaining moisture away with the soft cloth. Paper products are made out of wood that is turned into a pulp, so it is very easy to scratch glass surfaces with paper (no matter how soft you think it is). Keeping a soft cloth with the unit is a great way to make your testing easier.
I know it seems expensive, but certain devices provide so much benefit that they really change the way you approach the activity. Tank testing is time-consuming, and a bit annoying. However, devices like this truly cut time and effort from the process. I highly recommend this device.
Worth every cent. By BRYAN on 10/13/2018BRYAN would recommend this product to a friendIt makes life so much easier.
solid repeatable results By Stumpy the Parakeet on 7/15/2018Stumpy the Parakeet would recommend this product to a friendI believe in redundancy. I own a decent refractometer and this unit from Milwaukee. I came back from vacation and all my sps corals browned-out with no polyp extension. "That's odd, I thought". I titrated all the parameters (ok) Apex recorded normal parameters (ok). I then checked salinity with the refractometer 1.026. I properly calibrated it to make sure, and again it read 1.026. I pulled out my Milwaukee, calibrated it and it read 1.030. I did this three times to each unit. Turns out the refractometer was off even being calibrated. Thanks to MA877- i prevented a heavy costly crash. Now instead of acclimating corals, I am acclimating 100g + reef tank. Thanks BRS for carrying this! Highly recommend for the serious invested reefers.
Gives me confidence By Tom on 7/13/2018Tom would recommend this product to a friendI've just added some "Coralline Algae in a Bottle" to my new tank, and the instructions for the algae emphasize that it is VERY fussy about the salinity of the water. I would have been really nervous about dumping this expensive stuff into water that had been tested with just the Instant Ocean Hydrometer that some store employee talked me into buying—it has never given anything remotely resembling consistent readings. But the MA887 allowed me to slowly tweak my S.G. to the required 1.026, showing consistent results over many tests. The only thing I don't like about it is that I'm nervous about "scratching the prism" on this thing while doing the frequent required cleanings, which I assume would destroy it. I'd be willing to pay significantly extra to have a sapphire window on it (like better cellphone cameras have, to avoid scratched lenses), but I suppose there's no point in holding my breath for that one. If/when I break this thing, I'm pretty sure I'd bite the bullet and buy another.
Great idea. Lousy product By SEAN on 7/9/2018SEAN wouldn't recommend this product to a friendUsing this meter is really convenient and seems to give consistent readings. The trouble is with the build quality of the unit itself. Mine arrived non-functional (no-lt error code). BRS was not helpful in securing a replacement so I contacted Milwaukee directly and paid to the unit shipped back to them for repair/replacement. 10 days later a new unit shows up and functions for all of five weeks and now is failing with the same error code.
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.