Flexzion Commercial Ultrasonic Cleaner Large Capacity Stainless Steel with Heater and Digital Timer for Electronic Tool Jewelry Watch Glasses Rings Dental Lab Hospital Instruments (1.5L Capacity) Powerful ultrasonic transducer, more uniform distribution of ultrasonic, waves, strong cleaning, high durability Powerful heater makes the temperature reach the presetting one quickly -- significantly enhance cleaning Ceramic heater for better heating effect; Drainage and cool fan are available for 6L and above volume models Moisture-proofed and anti-corrosion PCB, capable for different working environments; Stamping tank without welding gap for waterproof Used to clean many different types of objects, including jewellery, lenses and other optical parts, watches, dental and surgical instruments, tools, coins, fountain pens, golf clubs, fishing reels, window blinds, firearms, musical instruments, industrial parts and electronic equipment. They are used in many jewellery workshops, watchmakers' establishments, and electronic repair workshops.