What can we actually do with our evaluation of a low-cost high-quality ECG & EEG device which is suitable for scientific studies?

What can we actually do with the device we evaluated: Alternative to the Muse headband Alternative to the Dreem2 headband Alternative to Neurocity Crown Alternative to the Schiller Medilog AR12 Plus Holter Recorder Alternative to a TA 220 recorder from iWorx Alternatives to the devices Rob ter Horst tested on his YouTube channel Alternatives to …