Tests continuity on dead circuits and voltages from 2V to 500V AC or DC. Indicator lamp at tip allows you to keep eyes on probe. Comes with two interchangeable bulbs for low-voltage (0 to 70V) and high-voltage testing (60 to 500V). Also test continuity from 0 to 10Ω. High-impact molded body with rugged 3 ft. lead, fitted with insulated alligator clip. Operates with two AAA batteries (not included). 6" long. Weighs 1-1/2 oz.