What is this? 1973 38' FBDC

[Maurice]

This was mounted on the flybridge helm station. No idea what it is?
Look at all familiar?

 

[SKYCHENEY]

Discronificator

 

[warrenw]

That looks very familiar, I think we had a unit like that at the helm of my parents' 1967 Chris-Craft 31 Commander. We sold that boat 30 years ago but believe that unit was gasoline fume detector by NewMar.

 

[cww]

Self destruct switch