AC Powered Ultra-Sonic Cleaner

Pros: * Extremely cheap for the price. If you Google for the product, the prices are $50+
* Works very well
* Sturdy
* Automatic on and off
* Has manual in Engrish and Chinese. ;) Check the photos.

Cons: * Uses a US plug. Had to get a converter.
* The basin that holds water is not easily detachable. Requires you to lift it and disconnect some wires of the Ultra Sonic module. If you just pour the water out without taking out the basin, the water might get into the gap between the basin and body, and short the ICs and the circuits inside. You can understand this if you see the photos.

Other: Every this's amazing including the working and price, but the basin is a minus. But in my opinion, if you use it well and take good care, there should not be any problems.

Pros: Only one: low price, and it works at least

Cons: A bit low power. could be at least double at it is now.
It cant clean metal oxides or rust.
Switch does not always operate correctly but that is easy to fix.

Other: I had to replace power cable because it comes in USA standard.
First job was to clean 2 electronic boards that were water damaged, and to my surprise they both started working.