Looking for ideas on 19" rack mount for Arduino

PeterH:

iisfaq:
I am mainly looking at Monitoring Temperature, Humidity but would like to get into Water Leak Detection as well

Are you aware that you can get USB dongles off the shelf that just plug into a handy USB port to do that sort of thing? It seems a bit over the top to add a DIY microcontroller and take up a slot in the rack just for that.

I guess we should not do anything then since everything has already been created!