Thexton 117 Charg-Chek Battery Tester
Product Details:
* 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
* One-piece rubber bulb, neoprene tip
