These electrodes 42 and 44 are mounted through the side of the housing and are spaced sufficiently apart so as not to make {HEAD ~ direct electrical contact} between {TAIL ~ the electrodes} 42 and 44 
These electrodes 42 and 44 are mounted through the side of the housing and are spaced sufficiently apart so as not to make { HEAD ~ direct electrical contact } between { TAIL ~ the electrodes } 42 and 44
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 HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH