{HEAD ~ The traverse} of the color change along the length of the indicator scale, outwardly from the center point, is proportional to {TAIL ~ the current or voltage output} or the condition of the battery to be tested and can be read on the indicator scale which is calibrated accordingly 
{ HEAD ~ The traverse } of the color change along the length of the indicator scale , outwardly from the center point , is proportional to { TAIL ~ the current or voltage output } or the condition of the battery to be tested and can be read on the indicator scale which is calibrated accordingly
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL 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