This direct-connect ECG cable is available for use with Analogic: Lifegard II; Welch Allyn: 1500, Atlas, Atlas 6200 Series, PIC 30, PIC 40, PIC 50, Propaq 100 Series, Propaq 200 Series, Propaq CS, Propaq Encore, Ultra Smart; Zoll: Propaq MD, X Series.