ULTRA 7000 ULTRASONIC CLEANING MACHINE (0713 000315) This compact ultrasonic cleaner effectively cleans a whole range of products including small parts, watch straps, jewellery, eye glasses and even cd's. Ext. size 210 x 158 x 125mm. Stainless steel tank. Auto timer cut-off. 50w 240v Frequency 42,000Hz. Capacity 750ml. Weight 1kg.