AliveCor KardiaMobile 6L Personal EKG Sensor

Six-lead personal ECG/EKG device (records leads I, II, III, aVL, aVR, and aVF). Works with a phone app to let you see the readings in real time. You can use both hands to take a 1L reading, or both hands and your knee or ankle to take a 6L reading. The more advanced determinations require a paid subscription vs the app telling you (graphs will still show everything if you've learned to read an EKG), but the base info can help put your mind at ease, or give you and your doctor a wealth of information that's taken during possible events instead of just at the doctor's office (requires a quiet environment to take a reading). Got it two years ago, and it helped me rule out some possible issues then. Hasn't been used much (original battery is still at 96%). Cash only. Not interested in trades, thanks. I usually meet at a library, or a big box store parking lot, and it usually takes at least a day for me to arrange a meet.