| 7 leads Placement |
| 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 midclavicular line |
| CH3- |
Blue |
Blue |
Manubrium sternum |
| RL |
Green |
Black |
Lowest rib on right side of chest |
