Pulse oximeter Doctors choice: measures quickly and accurately pulse rate and spo2 blood oxygen saturation of arterial hemoglobin levels. Accurately determine your spo2 (blood oxygen saturation levels), fast spo2 readings, pulse measurements and display it conveniently on a large digital bright led display Accurate: rotatable multidirectional display, allows you to view your results in any direction plus pulse wave, pulse rate, bar graph, spo2 level and battery level Compact: light and compact, accommodates wide range of finger sizes, long battery life PRODUCT INCLUDES: Fingertip Pulse Oximeter, User Manual, 2-AAA Batteries, six months Warranty from date of invoice generation for free by registering on manufacturer website within 15 days