OK - thanks kwaj.
I'll take your word for it, and just do the usual salt test.
Thought I'd be able to do a "short-cut" and test with 65rh Bovedas.
Scored 4 new digi hygros, that take one AAA battery...........yaay!!
Hate dealing with those little, gotta order em off Amazon, stupid, pain in the azz, tiny watch batteries that most hygros use.
KingoftheCove wrote: