PiEEG PiEEG is ready to ship from Elecrow late in April 2024: https://www.elecrow.com/pieeg.html OpenBCI Products from www.openbci.com are on the market since more than 10 years:. We have scientific papers which tested OpenBCI for: 3 channel ECG: https://www.cell.com/heliyon/pdf/S2405-8440(21)01251-2.pdf & 16 channel EEG: https://www.mdpi.com/1424-8220/23/7/3763 For those who want to be on the save site, ask yourself …