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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