Welch Allyn Holter System - User Manual - Manual (Page 20)

16 Directions for Use Welch Allyn Holter System
Figure 5. 7-Lead Placement (all models)
Table 3. 7-Lead Placement (all models)
Lead AHA Color IEC Color Placement
Ch1+ Red Green 4th intercostal space at left border of sternum
Ch1- White Red Left clavicle, lateral of sternum border
Ch2+ Brown White 6th intercostal space at the anterior axillary's line
Ch2- Black Yellow Right clavicle, lateral to the mid-clavicle line
Ch3+ Orange Orange 6th intercostal space on left mid-clavicular line
Ch3- Blue Blue Manubrium sternum
RL Green Black Lowest rib on right side of chest