Gemoro Ultrasonic 1.2 Quarts Voltage Option:110V/120V you will require the 18k

you will require the 18k gold Calibration Disc

allowing seamless analysis of various alloys without manual recalibration

Horia AS03

Durable plastic cover protects the scale when not in use and also doubles as an expansion tray

Gemoro Ultrasonic 1.2 Quarts Voltage Option:110V/120V you will require the 18kGEMORO's 1. 2 Quart Ultrasonic model features a durable black ABS exterior, digital timer, and stainless steel tank with a full sized basket. Great as a secondary or backup ultrasonic machine. GEMORO ultrasonic machines use 42,000 hertz second sound waves (completely inaudible to the human ear) to eradicate dirt, grime, oil, and more while leaving jewellery unharmed. Simply plug in, fill with tap water, and turn it couldn't be easier! Use with GEMORO