Compact and attactive, the B200 is the finest ultrasonic cleaner made for home use. All you need to do is add the appropriate solution for your application, followed by a thorough rinse. The cleaner uses ultrasonic energy (40 kHz) in the form of sound waves to create millions of tiny microscopic bubbles in the solution that even works its way into holes and hidden cavities, loosening dirt on all surfaces that the solution touches. This action, called cavitation, occurs thousands of times per second to gently yet thoroughly scrub contamination off the article being cleaned. When you lift the item out of the cleaner, it is microscopically clean. The model B200 ultrasonic cleaner used with Branson's jewelry solution is all you need to clean your jewelry items such as gold, gemstones, platinum, rings, and watch bands. Our Jewelry Cleaner Concentrate is a specialized biodegradable phosphate-free alkaline cleaner for jewelry and precious metals. A unique blend of nonionic surfactants, detergent bases, and wetting agents provides a safe cleaning medium for valuable jewelry. Gemstones and precious metals are quickly restored to their original brilliance with this free-rinsing solution. Other Cleaning Applications: Instrument & clock parts, Small geological samples, Coils & hobby items, Small electrical/electronic components, Metal & plastic machine parts, Recorders & drafting pens.