This trunk cable works with the following ECG monitors: Life Science Instruments (LSI): LS5, 261 Medical Data Electronics (MDE): Escort 100, Escort 101, Escort 102, Escort 200, Escort 300, Prism, 360SL, 450SL, 521A, PortaPak 80, PortaPak 90, PortaPak 1000 Medtronic Physio-Control: Lifepak 6, VSM-1ESF (with resistors) Nellcor: N-200 C-LOCK, N-250 C-LOCK, N-1000, NPB-3900, NPB-4000 Nihon Kohden: BSM-8301A, BSM-8302A, BSM-8500A, BSM-8502A, OEC-6102A (s/n>20156), OEC-6105A (s/n>20226), OEC-7102A, OEC-8108A, TEC-5200A (s/n>20421), TEC-7100A, TEC-7200A, TEC-7300A; Pace Tech: Minipack 300, Minipack 3000, Minipack 3100, MiniMax 4000CL, Vitalmax 800 Plus, Vitalmax 2100, Vitalmax 2200, Vitalmax 4000, Vitalmax 4000CL, Vitalmax 4000 Modular, Vitalmax 4100, Vitalmax 4100CL