... ,adopt identical transducer element,replaceable,renewable by same plate transducer Clangsonic Dual-Frequency Cleaner By Plate Transducera) Adopt identical transducer element ... but can work at frequencies 40KHz or 120KHzb) Replaceable,renewable by same plate transducerc) Customized to solve different problems with different ... transducer and the wire side view Dual-frequency cleaner by plate transducer