Use the TCIKIT to build your own customized adapter for the DA100C. The do-it-yourself transducer connector interface kit includes housing, PC board with 7 attached PIN plugs (2mm) and instructions. Mount your connector to the housing and solder wires to the pins.
Note:To build your own customized extension cable for BIOPAC C-Series Biopotential Amplifiers, use TCIKITC, which has five Safelead pins.