Got my brand new CTX and was excited to do some water hunting in the saltwater... Purchased GG headphones, made sure that the battery oring was seated good and clean, made sure that all of the cables was nice and tight, made sure that the USB connector cap was tight and I jumped in the water. At waist deep water I turned on the unit, made 5 sweeps and detected a target, squeezed the pinpoint button, dug the target, then the unit shut off... the unit was good for a total of 30 seconds with the control panel at only 2 feet under water. I immediately took the unit out of the water and rinsed it off and took it home. The battery compartment was dry but I did have some condensation on the inside of the screen... :-(