Gallagher Fault Finder Digital Electric Fence Tester Voltage and current meter for detection of faults in electric fence. Convenient pocket size, water resistant and impact resistant case. Features a large easy to read LCD liquid crystal display , auto on/off which is activated when fence pulse is detected, and a switch to change between DVM digital volt meter and current meter mode. Retractable voltage probe for reading voltage on energizers and other hard to reach areas. Micro-chip technology enables low voltage operation. Detachable earth lead. All parts fully replaceable. Requires 1 CR2032 1.5V battery, included. Low battery indicator, battery lasts up to 3 years. Type Digital, Dimensions 2-3/4 In. W. x 5 In. H. x 3/4 In. D., Cord Length Cordless, Pkg Qty 1, Package Type Clamshell