While we are thinking about snow and dam level sensors here is another possible additional sensor,
http://www.playingwithfusion.com/product...hp?pdid=22
It seems to have been looked at in posts in 2014 / 15.
??
http://www.playingwithfusion.com/product...hp?pdid=22
It seems to have been looked at in posts in 2014 / 15.
??

