The moisture sensors 60 are connected to a controller 62, which monitors {HEAD ~ the moisture content} in {TAIL ~ the atmosphere} 
in
The moisture sensors 60 are connected to a controller 62 , which monitors { HEAD ~ the moisture content } in { TAIL ~ the atmosphere }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL