Come and see our amazing products. Accurately determine your spo2 (blood oxygen saturation levels), pulse rate and pulse strength in 8 seconds and display it conveniently on a large digital LED display. Taking a reading is easy, 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). Your logo is welcome. Pls confirm further with us if any query about packing info, inventory status and time schedule.