{HEAD ~ A motion sensor} comprises a touch screen, and {TAIL ~ a motion indictor} proximate to the touch screen, the touch screen displaying: an adjusting bar indicating a threshold at which motion is detected, and a level bar indicating an amount of currently measured motion 
comprises
{ HEAD ~ A motion sensor } comprises a touch screen , and { TAIL ~ a motion indictor } proximate to the touch screen , the touch screen displaying : an adjusting bar indicating a threshold at which motion is detected , and a level bar indicating an amount of currently measured motion
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH