EEG Cap WaveGuard | Size M (51-56cm)
10/20 system with 21 Tin (Sn) electrodes plus GND and REF.
19 EEG electrodes, A1 and A2 on the mastoid (M1/M2), ground/earthing (GND = Fpz) and reference (REF = CPz).
Cap color: O O O
Tin (Sn) electrodes are ideal for EEG recordings.