Come and see our amazing products. Designed to provide a quick, accurate way for spot-checking blood oxygen saturation levels and pulse rate while you're on the go.SpO2 and Pulse Rate are graphed on the bright LED display. The LED display cover prevents ambient light washout, making readings crisp and clear. Average time for a reading is 10 seconds. Intended for sports or recreational use. A perfect blood oxygen saturation monitor for all ages.This oxygen monitor fingertip reader/checker comes with 2 AAA batteries.Accuracy: SpO2 +/-2-3% / HR +/-5 BPM. Fits fingers with a thickness of .31" to .79" (8mm to 20mm).Customized design is available. Pls confirm further with us if any query about packing info, inventory status and time schedule.