http://slickdeals.net/f/8702367-oled...-free-shipping
Main Features:
● Low battery indicator.
● Dual color OLED screen display.
● Automatic power off when signal is not available after 8 seconds.
● Small in volume, light in weight, convenient to carry.
●The blood oxygen saturation measurement range: 35 - 100 percents. Accuracy: ±2 percents (70 - 100 percents ).
● Pulse rate measurement range: 30bpm - 250bpm. Accuracy: ±2bpm.
● Particularly suitable for persons with heart failure, chronic obstructive pulmonary diseases, bronchial asthma, etc.
● Powered by 2 x AAA batteries (not included) and it can be used continuously for about 40 hours.
It's cheap , but useful.Why not buying one for your own good or your parents and friends?
Go get it now!
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