Amplifiers (2E module) with serial numbers below 1200 may now upgrade their  BrainMaster Module 2E EEG systems to  boast a minimum input impedance of 1000 Gig ohms, and common mode rejection ratio (CMRR) of 120dB. Until now only the highest cost medical EEG systems have been able to provide this quality performance. Cleaner EEG signals; minimum electrode preparation; Better noise free & artifact free signals!  Includes 30-day parts & labor warranty on trade in. Includes specs of Linear Update (710-005). To send in your unit, call for a RGA number today. 

                                                             
Each: $450.00 ($350.00)