BPM Biosignal

BPM Biosignal is a two stage amplifier created mainly for educational purposes. They have a list of components and video tutorials that explain among other things:

how to to distinguish noise from actual biosignals and will see that often noise
is “sold” as a biosignal, even in top level publications. With the help of these
clips you can critically evaluate such results and make up your own mind.

bpm biosignal