The Amkay Pulse Oximeter is a compact, non-invasive device that clips onto a fingertip to measure blood oxygen saturation (SpO2) and pulse rate, providing quick, accurate readings for proactive health monitoring at home or in clinical settings, useful for managing respiratory conditions like asthma or COPD, and comes with batteries, a lanyard, pouch, and manual. It works by sending light through the finger, detecting oxygenated vs. deoxygenated blood, displaying results on an easy-to-read screen, and features low power consumption with auto-off for convenience.