DK SONIC DK SONIC Professional Ultrasonic Jewelry Cleaner with Digital Timer for Eyeglasses, Rings, Coins

Generally speaking, it works well enough. I bought this to clean inline skate bearings. To that end it removes a fair amount of the (though not all) dirt, oil and grease from the bearings without additional cleaning and polishing. However, all the aforementioned filth rises to the surface of solution and creates film on the top of the liquid. The bearings (or whatever one is cleaning) sit in a strainer basket. If one attempts to pull the bearings out without dumping the solution first, he risks just lifting them up through the film of filth. But, if is essential to the efficacy of the cleaner that one empty the solution first, why is a strainer necessary at all? One that note, the whole thing lacks intuitive features. It definitely involves some reading to determine how to operate the machine effectively. All of that said, it works and it is comparatively cheap.

Before on the left, after on the right. Those bearings have served me 1000 miles, 1600km, I'm an endurance distance skater so they see heavy use.Got this to clean some ceramic bearings for my inline skates. They once were pure white, and now they are again, or very close. 2 cups of warm water, a few drops to a teaspoon of dish soap, mix then pour into the hopper. The cleaner is most effective in the middle of the hopper. Remember to allow it to cool between uses as the instructions state. Pour the water off before removing the objects to be cleaned since oils float.

Cleans my diamond jewelry real good. No more using a jewelry brush or jewelry cloth.

Even medical tools come out verry clean, ready to use. It is a bit small. But we manage.Emile

This jewelry cleaner has been a good investment. I originally purchased it to take care of my diamond ring but now I use it so much on almost all of my jewelry that I have gotten so I just leave it on my kitchen counter and throw jewelry in it while I am rushing to get to work. I poured Windex in mine and it cleans jewelry quickly. I have even tossed costume jewelry in it that I was going to throw away because it was so discolored and since it wasn't silver or gold I didn't think it was salvageable but I was wrong. It came out looking great. There are certain stone like opals and tanzanite you can't use it on. It can also be used to clean other things besides jewelry.