This whole chip thing is new to me. Out of curiousity, I checked Craigslist for ultrasonic cleaner. Found this. Not really local, but I'll be heading through Des Moines soon to visit my wife's family. Does "medical grade" mean anything?
https://desmoines.craigslist.org/app/d/medical-grade-ultrasonic/6590058124.html
https://desmoines.craigslist.org/app/d/medical-grade-ultrasonic/6590058124.html