2017/1170 - A compact battery-operated fingertip apparatus (so called ‘pulse oximeter’) combining an electronic processor, a pair of light emitting diodes (LED), a photo diode and an LED display (offering various display modes) in one unit. It is also equipped with a low battery indicator, an alarm function in case of high or low pulse rate or blood oxygen, and a ‘clip in’ attachment to the finger. It is used as a non-invasive method of monitoring a person's oxygen saturation and for measuring a pulse by me - The Trade Hub