ECG Trunk Cable 3 or 5-Lead - Nihon KohdenNihon Kohden 12 Pin, For use with 3, 5, or 6 Lead set, NK-6LD StyleCompatible with:BSM-2300 Life Scope I, BSM-2301, BSM-2351A, BSM-4100 Life Scope P, BSM-4102, BSM-4102A, BSM-5100 Life Scope A, Life Scope TR, BSM-6000 series, BSM-6301K, BSM-6501K, BSM-6701K, Life Scope J, BSM-9101, PVM-2701, BSM-9510 Life Scope M, BSM-9800 Life Scope S, Life Scope 6700 Series.