The RIDGID SeekTech Induction Signal Clamp Accessory allows users to apply a signal to a cable or pipe 119 mm (4.7 in) or less in diameter when it is not possible to connect the transmitter wires directly to the target conductor. When its jaws are closed around the cable or pipe, the clamp couples the transmitted signal to the conductor by induction. Once the signal is applied to a conductor, it can be traced using a compatible receiver, such as SeekTech SR-20, SR-24, or SR-60.