Catka Fingertip Pulse Oximeter Pulse Oximeter  (Blue, White)

Fingertip Pulse Ooximeter. How does it work? To use this health gadget you just insert your finger then press the power button and the Finger Pulse Oximeter and Heart Rate Monitor will display your heart beat p/m, the percentage of oxygen in your blood and displays an indicator bar that increases and decreases by synchronizing with the rhythm of your heart beat. The bar graph serves the purpose of letting you know if you have got a weak or strong hear based on the level of the graph. You get all this without needing to go to the hospital, see a doctor or have any invasive procedure., Features: 1)Operation of the product is simple and convenient., Features: 2)The produce is small in volume, light in weight and convenient in carrying.Power consumption of the product is low and the two originally equipped AAA batteries can be operated continuously for 20 hours., Features: 3)The produce will automatically be powered off when no signal is in the product within 5 seconds.