15L Stainless SteelUltrasonic Jewelry CleanerThe ultrasonic cleaner is a microprocessor-controlled device through applying ultrasonic or high-frequency sound waves to clean jewelry and other delicate items. Ultrasonic cleaning is based on the cavitation effect caused by high-frequency ultrasonic wave vibration signals in the fluid. Microscopic bubbles that expand and collapse rapidly cause cavitation, which creates a wonderful cleaning action on the surface of the object being cleaned. Features Durable stainless steel construction. Stainless steel tight-fitting lid with the handle to prevent water heat from diffusing. Ultrasonic cleaning and heating can work at the same time. High efficiency saves cleaning solvent, thermal energy, workplace and labor! Large digital timer and temperature display for precise wash time and temperature control. High efficiency clean for teeny blot particles. Use only tap water for general cleaning, you also can add about 5-10 ML of detergent into the water to enhance wash result when needed. It is more convenient and efficient than hand wash, steam cleaners, high-pressure water jet cleaning or other machines. Just plain tap water is enough if no special results required. Technical Parameters Heating Power: 400W Ultrasonic Power: 360W Frequency: 40kHz Tank Capacity: 15 L (3.9 gallon) Time Setting: 1 - 30 minutes Temperature Setting: 0-80 degrees Celsius Transducer Quantity: 6 sets