{TAIL ~ a switch} including a sensing arm engageable with a second side of said membrane to be displaced in response to pressure induced deflection of a contact region of {HEAD ~ said membrane} contacted by said sensing arm; and 
{ TAIL ~ a switch } including a sensing arm engageable with a second side of said membrane to be displaced in response to pressure induced deflection of a contact region of { HEAD ~ said membrane } contacted by said sensing arm ; and
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH