"What does it mean that my lead 2 was flatline"
Susan,, I don't have this device, but it looks like lead 2 is provided by the right thumb plus the back of the device on your left leg. My assumption is you didn't have a good leg connection on the back of the device, but you did have between your left thumb and right thumb on the device. Maybe after you converted you could focus better and get a good connection??
Edited 1 time(s). Last edit at 03/19/2021 08:05AM by GeorgeN.