New Japan Radio Co., Ltd. (New JRC) recently has released its new product NJL5303R, a reflective optical sensor combining a green LED and photo transistor into a small COB package which is very applicable to pulse detection. Many pulse testing equipments on the now market, utilize near infrared light to do blood flow detection. The NJL5303R adopts green light with 570nm emission wave length well-suitable for pulse detection. The reflection factor of green light provides higher sensitive pulse detection than the detection employing near infrared light. The NJL...