Get accurate readings from our unbreakable, direct readings hydrometer. Made to stand up to tough treatment in service stations and garages, it's designed so that both customer and technician can see the state of the battery acid.SPECIAL FEATURES: * Accurate range of 1.100 - 1.300 * Unbreakable * Easy to read-just read the pointer * No temperature tables required * No difficult float reading to be observed. * Small, compact design for use in hard to reach places. * Economical, your first cost is your only cost. No replacement parts. Rugged construction. Unbeatable quality * Used by battery manufacturers for on line testing. * Weight - 3.5 oz.