This sale is for a used NEY Sweepsonik2 model40-SWP2-3536N ultrasonic generator. These are 240VAC with an odd plug in. I have no way of testing these, but I have 4 of them and they came out of an operating powder coating business that we cleaned out a few years ago, and I am pretty sure they all work. I cannot see why they would have kept them if they didn't. Anyway, I am not into this type item and am cleaning things out so I am selling them cheap. NO GARANTEE ON WORKING THOUGH. Please see pictures and ask questions if you have them. We describe our items as accurately as possible. We do not know everything, so look at the photos as well as reading description completely. I will ship internationally and will combine shipping on multiple purchases.