Elma - Ultrasonic Cleaner Powerful bench-top ultrasonic cleaner. Engineered to generate ultrasonic waves at 35 kHz frequency for quick, easy cleaning. Cabinet, tank and cover are made of stainless steel. On/off indicator light. Built-in heater with on/off switch. 15-minute timer or run continuously. Capacity: 2 quart. Interior tank dimensions: 6"L x 5 1/2"W x 4"H. Exterior dimensions: 7"L x 6 1/2"W x 8 1/2"H. Power Specs: 100 watts, 35 kilohertz, 110 volts. Made in Germany.