Other refinements include {HEAD ~ modifications} to {TAIL ~ the switch housing} and condition indicators for monitoring the system and signaling water detection and shutdown operations 
to
Other refinements include { HEAD ~ modifications } to { TAIL ~ the switch housing } and condition indicators for monitoring the system and signaling water detection and shutdown operations
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH