pulse oximeter home accessery, lanyard silicon case & battery lk87 (blue)

accurate oxygen saturation and pulse rate readings in one device: the figertip pulse oximeter fits all finger sizes from kids above four years old to adults as it measures the level of oxygen in the blood and reads the pulse rate in just eight to ten seconds. it is crucial to use the device in a stationary position and not while in motion for precise readings. fast & convenient readings: spo2 and pulse rate are graphed on the bright led display. the led display cover prevents ambient light