The Klein Tools Continuity Tester quickly reveals shorts or broken circuits in all types of electrical devices and controls. Tests for circuit continuity with power off. The pointed probes gets right to the problem. The handle lights up if the circuit is complete. Bulb for handle is included.Features 36-Inch (914 mm) test lead with alligator clip Bulb in handle glows when circuit is complete (bulb included) Uses one AAA battery (not included) Replacement bulb (Cat. No. 69131) Quickly reveals shorts or broken circuits in all types of electrical devices and controls Tests for continuity of circuit with power off Pointed 3-3/4-Inch (95 mm) probe gets right to the problem Deluxe 4-Inch (102 mm) long handle with removable nylon cap holds replaceable bulb and battery Bulb in Handle Glows When Circuit is Complete Warnings Always wear approved eye protection. Do NOT use for checking continuity on live circuits. Type: Continuity Tester Overall Length: 43.75 in (111.1 cm) Width: 1 in Height: 1 in Depth: 43.75 in Weight: 0.013 lbs Battery: 1 x AAA Country of Origin: United States DownloadsSpec SheetVideo DownloadVideo Download