The field relates generally to the field of {HEAD ~ controls} and, more particularly, to method and {TAIL ~ apparatus} for controlling dispensers and for detecting users 
The field relates generally to the field of { HEAD ~ controls } and , more particularly , to method and { TAIL ~ apparatus } for controlling dispensers and for detecting users
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH