Extension cable providing a connection from subject to the BrainMaster 2E module, supporting connection of 5 DIN touchproof leads, with shielded cable. Shield is connected to “ground” connection at input of 2E module. Provides clean signals over extended distances, with less concern and artifact due to electrode leadwires. NOTE: Recommended for use with 630-007. 18” leadwires with gold sensors, or similar configuration.