Yuwell Pulse Oximeter (Unbreakable) MD 300C63
(5 reviews)* Infants, children, and adults
* Display SpO2, pulse rate, Bar Graph, Plethysmogram
* Dual color OLED (organic light-emitting diode) display
* Ten levels adjustable brightness
* Six display modes
* Pulse signal intensity
* 30 hours continuous use with alkaline batteries
* Low battery indicator
* automatically power off;
* 2 AAA Alkaline or rechareable batteries