... more stability 6. With overheating protection circuit 2000 Digital Ultrasonic cleanerAppliaction: Suitable for laboratory, electronic workshop, mobile ... , DVD, PCB/FPC and baby toys Our digital ultrasonic cleaners used for industrial purposes but can ... , nozzles, watches, mobile, denture, experiment and equipment. Digital Ultrasonic Cleaner Specifications: Ultrasonic Frequency 42,000 Hz Tank Material ...