This SpO2 extension cable works with the following patient monitors: BSM-2300 Life Scope I, BSM-2301A, BSM-2351, 2353 Life Scope L, BSM-2301, 2303 Life Scope I, BSM-4100 Life Scope P, BSM-4101, 4103, 4111, 4113 Life Scope P, BSM-5100 Life Scope A, BSM-5105, 5135 Life Scope A, Life Scope TR, BSM-6000 series, BSM-6301K, BSM-6501K, BSM-6701K, BSM-9510 Life Scope M, BSM-9800 Life Scope S.