HOLFENRY Pulse Oximeter Fingertip – Large Display Oxygen Monitor Fingertip with Fast 5-8s Reading for SpO2/Heart Rate/PI, Accurate Pulse Ox for Home/Sports/Travel, Batteries & Lanyard Included

3-in-1 Fingertip Pulse Oximeter – Tracks blood oxygen saturation (SpO2), pulse rate, and perfusion index in one go. Gets you readings in 5-8 seconds with advanced sensor tech, so you always know where you stand. For sports and aviation use only. Not a medical device.
Large OLED Display, Easy-to-Read Numbers – Bright OLED screen with oversized digits you can read at a glance, even in dim light. Signal strength indicator shows how strong your pulse reading is.
One-Button Simplicity – No setup needed. Press once to measure. Auto shuts off after 8 seconds without a finger, saving battery life for the long haul.