This tester is designed to test in-service grounding and jumper cable assemblies Regular periodic use will ensure that jumper assemblies perform as designed for personnel safety Tester is completely self contained, portable and sets up in seconds. Any standard 120 volt grounded outlet will provide power to the tester. A reference chart is provided for #2, 1/0, 2/0, and 4/0 Str. Cu. cables of specific lengths to determine correct test values A built in digital meter allows the operator to easily input the correct voltage specified on the reference chart for various sizes and lengths of cable A built in digital ammeter tells the operator if the assembly is in good working condition Test electrodes are available to fit a variety of grounding equipment including elbows, grounding bushings, and ball socket clamps Maximum voltage output is limited to protect the operator Pressure sensitive inspection labels are available to tag cables after testing Made in USA Hastings Grounds & Jumper Tester 7714