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  1. BVP/HRV Finger Sensor for Physiocom GP-4 , GP-8 & GP-12 - High-Grade Clip Type
    Blood Volume Pulse (BVP) Finger Sensor for GP-4 , GP-8 and GP-12 biofeedback devices from Physiocom Designs (formerly J&J Engineering). Can be used for Heart Rate Variability (HRV) training Learn More
    $70.00
  2. BVP/HRV Finger Sensor for Physiocom GP-4 , GP-8 & GP-12
    Blood Volume Pulse (BVP) Finger Sensor for GP-4 , GP-8 and GP-12 biofeedback devices from Physiocom Designs (formerly J&J Engineering). Can be used for Heart Rate Variability (HRV) training Learn More
    $30.00
  3. Neurofield Power Supply for X3000 or Q20
    Neurofield power supply (one needed for each box. (The Q20 can also be placed on battery). Learn More
    $375.00
  4. -10%
    J&J Input Extension Cable
    Input extender for the J&J C2+ 12 channel and 6 channel systems. Learn More
    was $40.00 Special Price $36.00
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