Come and see our amazing products. The Fingertip Pulse Oximeter monitor 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. Reads SpO2 and Pulse Rate. Accuracy: SpO2 +/-2-3% / HR +/-5 BPM. Accurate and approved with CE certification. 2 x AAA batteries needed (not included). The oximeter is good for sports enthusiasts like mountain climbers, skiers, bikers or anyone interested in measuring their SpO2 and pulse rate. 2.4 " x 1.2 " x 1.3 " Pls confirm with us about the packing info, stock color and exact production time before placing your order