Disc-Type Battery Tester [117]

Disc-Type Battery Tester  [117]

Large 16-1/4" professional disc-type tester is accurate down to -40° F. Full size tester uses specific gravity and the number of floating discs to show state of charge. Accurate at all temperatures. Specific gravity levels are printed on the tough, see-through plastic body. Has one-piece rubber bulb, neoprene tip.