The Lk-87 Finger Pulse Oximeter is a reliable and easy-to-use device for monitoring blood oxygen levels and heart rate. This fingertip oximeter utilizes infrared sensor technology for accurate readings, and its digital display makes it easy to interpret the results. Powered by batteries, the device is compact and convenient for on-the-go use. With a sleek blue design, the Lk-87 model is a practical and efficient tool for maintaining and monitoring your health and wellness.