Never pay down a deposit in a bank account until you have met the seller, seen signed a purchase agreement.
No serious private advertisers ask for a down payment before you meet.
Receiving an email with an in-scanned ID does not mean that you have identified the sender. You do this on the spot, when you sign a purchase agreement.
ECG electrodes are small, conductive pads placed on the skin to measure the heart's electrical activity. They are used in electrocardiograms (ECGs) to monitor heart rhythm and diagnose heart conditions. These electrodes, typically made of Ag/AgCl and often with a conductive gel, reduce electrode polarization and allow for stable baseline readings.
