OLED Finger Pulse Oximeter, O2 Meter, Dual Color White/Black

Customers find the pulse oximeter simple to use and set up, with accurate heart rate measurements and reliable functionality. The device is easy to read, featuring big numbers and clear graphics, and customers consider it excellent value for money. They appreciate its convenience, with one customer noting it's particularly helpful for healthcare workers. While some customers report fast readings, others mention the device takes a long time to register results.