Fingertip Pulse Oximeter YK-81B

Features:
1. Product dual color OLED display,can show the six different display mode in 4 directions.
2. Low-power consumption, continuously work for more than six hours with built-in rechargeable lithium battery.
3. Battery power indicator.
4. The device will automatically power off in 8 seconds if there is no finger signal.
5. Alarm Setting.
6.Small in volume, light in weight, and convenient to carry.
Product Description: