Professional Use: Medical and Dental Clinics, Tattoo Shops, Scientific Labs and Golf Clubs. Jewelers, Opticians, Watchmakers, Antique Dealers and Electronics Workshops etc. Personal or Home Use: JewelryEarrings, Necklace, Rings, Bracelets and Diamonds. Glasses & Timepieces Glasses, Optical Lenses, Contact Lens Accessories, Watch Chains and Waterproof Watches. Commodities Tattoo Guns and Tubes, Electric Shaver Heads, Razor Blades, Dentures, Combs and Toothbrushes. StationeryPen-heads, Printer heads, Inkjet Cartridges and Seals. Metal Articles Ancient Coins, Badges, Valves, Machine Nozzles, Electronics Components and Mechanical Parts, Forks, Knives, Spoons and Other Small Silverware etc. Others Baby nipples, baby feeder bottles, Fruit, vegetables. Features: 1. Stainless steel tank, high resistance to wear and long work-life. 2. Digital touchpad timing control, super easy to operate, ideal for household and small commercial use. 3. Industrial control chip micro-controller, flexible circuit boards control, more secure & stable. 4. Tap water directly, or industrial alcohol and solvent cleaner for higher cleaning requirement. 5. Temperature tunable up to 80C. 6. Data measured manually, please allow slight measurement error. 7. Support full voltage range from 100,110~130, 220~240V, plug type will be matched according to your shipping address. Updated new features: 1. Touchpad censor control panel, micro-computer gentle touch keypad, easy to operate 2, Oxygen exhaustion function. The machine will pause to work for 6 seconds after 9 seconds working, exhausting all the oxygen to avoid the adduction. 3, Capacity switchable and adjustable. Two capacity gears to switch, output power can be adjustable.