Assembling and Using 2 Channel Brain BioAmp Band to record EEG | Dry electrodes based EEG Band

what is the difference in data between this EEG at home device and the EEG machinery i use in the hospital on patients? like what are literally the differences in results or information.

Wait, wasn't that just one eeg channel? Or does each pill support two channels? I get there's a ref lead, are the pos and neg each reading different data? If so, how does it wind up going to just one analog port on the Arduino?

Anyone had any luck with alternatives to the nuprep gel? I saw some people suggest just saltwater, and others a mix of saltwater and aloe vera gel.

Can it be used with MATLAB ?

In Upsidedown's site there is only one code for EEG named as EEG Filter and it has only one channel coded in it pls provide code for 2 channels too

Can one make a REM Sleep tracker out of this?