The Klein Tools 69409 Line Splitter separates hot from neutral and ground wires on standard 120-Volt outlets so that current measurements can be made with a current clamp. Without the Line Splitter, the current clamp measures the load current going in both directions, effectively cancelling the measurement. The Klein Tools 69409 Line Splitter has a standard measurement section and ten-times multiplier section for use with less accurate or higher ranged clamp meters. This unit was designed for use with Klein Tools clamp meters but will also function with many other manufacturers' clamp meters.