Most of us (reef-keepers) have heard about the device called a hydrometer, and perhaps many people are using it for their reef’s needs. So, what did you experience while using it? Doesn’t it seem quite complicated? The answer would be yes.

It is because hydrometer requires a lot of work as it comes with sophisticated thin glass and tubes, and with those apparatus, you have to measure the density of a liquid.

However, modern technology has a solution to every single problem, and here to your rescue, comes a digital refractometer. It is easy to use and gives you a hundred percent accurate result in terms of measuring density, salinity, and temperature of the water.

So, when we switched from hydrometer to refractometer, it was quite life-changing because it is unimaginably fast. It takes approximately 2 seconds to give you an extensively accurate result.

Therefore, in this article, we present to you the Milwaukee Refractometer review. This product is easy to use, fast, and most importantly, it is portable.

Milwaukee Refractometer Review

Things to consider before buying

This product is specially manufactured for professionals because it is quite expensive for beginners. But, if you are thinking of building amazing reef tanks, then this can easily be your go-to.

So, it is better to know a product before spending money on it because after buying it, you might feel that it does not satisfy you. Thus, we have given some detailed information about this refractometer below.

Requires battery


This product cannot run without a battery, but there are other options in the market that you will find can work without a battery.

So, if you think you are not comfortable changing batteries from time to time, then working with this might be a little annoying for you.

However, this refractometer is one of the best in terms of providing you the measurement of water density. Besides, apart from changing a battery, it is effortless to use as well as fast when it comes to measuring.

Moreover, the battery power is only 1.9V; thus, you do not spend a lot of money on batteries. Also, with the packaging, you will get your first one for free.

Before testing anything, you have to keep the prism clean. You can use soft cloths, but do not rub it because you might end up scratching the surface.

Presenting The Milwaukee Refractometer

Milwaukee refractometer comes with a digital screen while measuring the temperature and salinity of your marine aquarium. There are different sophisticated features included in this product so that you do not have to bother in any way.

First of all, it is a well-designed and lightweight product; therefore, you can easily carry it wherever you want. Besides, the entire body is secured with screws that help to make it rigorous.

You can use it for measuring different samples, but make sure those liquids are clean because it might affect water salinity.

Also, it comes with a 1.9V battery, and with the first use, you will find the battery life 100%. Besides, there is an auto shut-off system included; thus, it will automatically turn off after 3 minutes when you are not using it.

Overall, this product will provide you with a more accurate result compared to any other manual device. More so, it is pretty straight-forward and simple, which gives the output within seconds.


  • Easy to use
  • Portable
  • Provides fast result (Less than a minute)
  • Prism surface releases the output in a digital screen that makes measuring easy


  • A little bit expensive
  • Bulkier compared to many devices

Milwaukee Refractometer Review: Features & Benefits

Fast and Accurate Result

The best part of using this refractometer is that you do not have to wait even for a minute. It is quick, so within seconds of placing the sample, you can read the result on a digital screen.

Furthermore, along with the quick output, it provides you a precise result of your liquid from saltwater aquarium. So, you can know the exact salinity of that particular sample.

Besides, it can also help you to know the temperature of the water. The procedure is the same, so by putting a small amount of liquid in the prism surface, we can read the temperature.

You can get a result in both Celsius and Fahrenheit scale.

Uses Smaller Sample Size

The refractometer is a convenient device. While testing any sample, it does not even need half a test-tube of the sample. The ideal size is two to three drops, so with that, it can easily read the essential measurements.

Auto Shut-Off

The typical scenario is that you might forget to turn off the device, so at the end of the day, the battery will be out of charge. So, to avoid this kind of incident, this unit comes with an automatic shut-off mode.

It turns off the device within three minutes if it is not in use. So, don’t worry if you forget to turn off your refractometer. It is because, even if you do, this product is enough to save its charge autonomously.

Besides, you will also get an indication from the battery, so if it gets low, you can keep a replacement with you beforehand.

Easy to handle and Lightweight

You can manage this product very quickly as you can adjust it inside your fist. It is around 1.50 pounds, so you can assume how easy it would be.

However, it does not provide you any box or holder to keep the device, and for that, you have to buy one of them. So, you can keep it inside the box for safekeeping.

Final Verdict

If you are one of those who do not like to compromise anything related to your marine life, then this product can indeed help you out. We all know that digital devices are much smarter than any analog device.

This product provides you many unique features, including fast reading, easy usage, and well-designed outer frame.

We hope our Milwaukee Refractometer review will help you to choose the best product among these enormous collections of other devices. We believe, to get an accurate result, this product is worth buying.

We wish you happy reefing!!

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