Gurin Finger Pulse Oximeter Expect accurate readings on both pulse and blood oxygen levels from the Gurin Finger Pulse Oximeter. A compact design and durable carrying case adds versatility to this device for anyone interested in measuring oxygen saturation. Gurin Finger Pulse Oximeter Pulse and blood oxygen levels displayed on OLED screen Plesthymograph wave measures pulse strength Alarm and beep controls 6 mode rotatable multi-color OLED display Simple and convenient operation Compact and lightweight 50g design Not a medical device Includes 2 AAA batteries carrying case and neck or wrist cord