Small in size high accuracy low power consumption Effortless operation measures quickly and accurately pulse rate and spo2 blood oxygen saturation of arterial hemoglobin levels user can see pulse rat, Bar graph in this led display light and compact, You just require put your finger in the fingertip pulse oximeter testing chamber, The end product will be shown the contec product s housing use abs matiral, The fingertip clip use silica gel mairal, Is soft and Convenient to execute there is a screen protector on the glass which has the possibility of being removed before use. You could notice some scratches which are only present on the plastic removable screen protector