Required when converting a Touchproof (1.5mm ID) socket electrode or transducer lead to an old-style 2mm pin, for connection to any of the 100B-series Biopotential or Transducer amplifier modules. Also used to connect a ground electrode lead (e.g. LEAD110A) to the UIM100C module (required when using the TSD150 active electrodes). One CBL201 cable (10cm long) is required for each Touchproof socket. CBL201 Adapter Cable, Touchproof (1.5mm ID) Socket to 2mm Pin CBL201$15.00 Same Day Shipping - orders with UPS Red or Blue shipping will be shipped the same day if received by 3 p.m. PT (Monday-Friday).