The OxyWatch C20 Fingertip Pulse Oximeter from ChoiceMMed and Oximeter Plus is a non-invasive small and very lightweight device that measures SpO2 and pulse rate, and displays a pulse bar. 

• ACCURATE AND RELIABLE: ChoiceMMed oxygen meter finger pulse oximeter accurately determine your SpO2 in 10 seconds and can read and display up to 100% on a larger LED display.
• EASY TO USE: Our pulse monitor is easy to use and has an efficient One Button Operation. The SPO2 Sensor will spot check and display in real time SpO2, PR, Pulse bar graph which great for checking your pulse signal strength. Please follow the plus/minus signs engraved on the battery casing and not follow the direction of the springs.