I am also developing an EKG exhibit and am considering the 2205, and need to know if the trace progresses across the screen constantly, or is the signal presented as a static trace. As this will be measuring heart signals, which vary in frequency and have multiple peaks and valleys per beat, so signal display in real time is critical.
The EKG device that I made for detecting the heart signal works quite well with our bench Oscilloscope, but the low price USB 'scope that I initially bought only captures a static view or the waveform that refreshes every few seconds, not very compelling.
Also, does the screen view of the Picoscope 6 expand to enlarge the waveform?
Thanks for the hepl,