[img][/img] I could find anyone with this particular problem online so I figured I’d post here. The DMM powers on normally and works perfectly fine for a few minutes. About 5 minutes in the wet signal starts to grow weaker until it disappears entirely, but the dry signal remains normal. Seems like a fixable problem but I can’t figure out why it would happen gradually like this. If I disconnect the DMM from power and start it up again the same thing happens. I’ve repeated this exact sequence a few times now. Anyone ever have this happen?