Come and see our amazing products. Digital pulse oximeter can be used to measure pulse rate, blood oxygen saturation levels accurately. Easy to Read: Support SPO2, pulse, and bar chart, you can view your result very clear with LCD display. Easy to Use: Accurate and reliable, one button operation, just clip it on to your finger and turn it on at the press of a button.Accomodates wide range of finger sizes - finger chamber with smart spring system. 2 x AAA batteries needed (not included). Pls confirm further with us if any query about packing info, inventory status and time schedule.