Biopac Systems Inc. SS29L BSL Multi-Lead ECG Cable These cables have a sticker on them from the college that they came from, but they are new. The SS29L Multi-Lead ECG Cable permits high resolution electrodcardiogram recordings. The lead set will allow you to simultaneously record Leads I, II, III, aVR, aVL, aVF, plus one precordial chest lead. A 12-Lead ECG recording can be obtained by alternating the chest lead electrode from position V1 through V6. The cable is terminated in three smart sensors which connect to three MP3X anlaog input channels. D2-6 fdk 80206258