Posted by a reviewer on Amazon

When you tilt the pulse oximeter toward you the screen balances and the numbers are always vertical

Posted by a reviewer on Amazon

Its reassuring to see the waves forming and watch them cross the screen

Posted by a reviewer on Amazon

The instructions just say open it

Posted by a reviewer on Amazon

But a quick google search with open battery compartment and the model number showed a youtube video that explained it in a few seconds

Posted by a reviewer on Amazon

Easy to use pinch your finger and after a few seconds the value will settle to a single value

Posted by a reviewer on Amazon

After several measurements the value before and after has not changed so the accuracy should be ok

Posted by a reviewer on Amazon

Flow quickly and come back to my parents to take over the information is great old man t worried e good convenient manipulation of the data is accurate my parents were satisfied with old mama also introduced to seven other aunts say yes

Posted by a reviewer on Amazon

Put in the finger and turn it on automatically monitor it automatically take out the finger and turn it off automatically