Using an advanced chipset and infrared detector, the pulse oximeter ensures you get accurate and reliable readings. The fingertip pulse oximeter accurately determines your SpO2 and pulse rate, conveniently displayed on a large digital LED display. Just stick your finger in, press the button and the reading will appear on the display within 8 seconds. One-button control makes the measurement more convenient and easier, even children and the elderly can operate alone. Our SpO2 sensor supports spot checks and displays your pulse rate, oxygen saturation and pulse bar graphs in real time, showing the strength of your signal strength. The pulse monitor automatically turns off when it doesnt detect your finger for 5 seconds, ensuring low power consumption. 2*AAA batteries (not included) support 600 measurements and more than 30 hours of continuous working time. Pulse oximeters are suitable for home use and outdoor use, and are suitable for a variety of finger sizes - from children to adults.