NextJumper Wires male to male 8 inch for Arduino (Pack of 10)
ECG Electrode For Arduino/Raspberry-Pi/Robotics
Easy to stick to chest to pickup ECG signals.
The center is filled with liquid electrode gel for good contact and pickup.
Remove plastic backing sheet to expose the adhesive. Then affix to chest and connect wires to your ECG module for signal pickup.
Gives good stablization and quick reading.