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The 1089 Mark III EEG impedance meter provides quick and easy evaluation of total electrode contact impedance and offset voltage between two electrodes. Learn More
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
EKG wrist straps provide fast, convenient placement of electrodes for measuring EKG from the wrists. Non-latex medical straps are easy to apply, comfortable, and washable; and electrodes are replaceable. Learn More
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