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Purchasing Neurofeedback Equipment

The NS500sx


  • Five EEG Channels with five on/off channel switches
  • Silver-Felt saline sensors
  • Individual channel sensor impedance check
  • Power on/off switch with threshold options
  • Batter Operated
  • Battery Check
  • Light feedback with time delay & thresholds
  • Sound feedback with time delay & thresholds
  • Synchrony training for two or more persons
  • Filter (4th order Peak) with controls for band pass adjustment
  • Reward filter center frequency display
  • Output to external digital systems



  • To be eligible to purchase the NS500sx, you must be trained and certified by Dr. Fehmi.   Please see Certification Requirments for further information.
  • By attending The Open Focus/Brain Synchrony Workshop, the purchaser will receive a discounted price on the NS500sx.  A no-interest payment plan is also offered.
  • By coming for a Mini Intensive, you also will receive the Workshop discounted rate.

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2015 Workshop Dates TBD





For difficulties connecting to the webinar seriesplease click the above link.  Dr.Fehmi's staff does not have the ability to troubleshoot the connections.


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The Princeton Biofeedback Centre, LLC
317 Mt Lucas Road Princeton NJ 08540
Phone: 609-924-0782
Fax: 609-924-0782
E-Mail: caroline@openfocus.com
Tuesday, Wednesday, Thursday 9:30am to 5:30pm EST
Saturday and Sunday 9:00am to 3:00pm EST