Pulse Ox Will Not Power On

Why does the PulseOx not turn on when I place my finger into it?

• First, make sure you are wearing the device correctly.  Your palm should be face up, and the screen should be face up.  Refer to the diagram below.
• Make sure your hand and fingers are warm.
• If all else fails, try replacing the batteries.  The batteries typically last about 3-4 months.  Insert two (2) AAA batteries.
• Important: it is not intuitive how the batteries are inserted into the device.  Carefully match the polarity markings ( + and -).  Refer to the diagram below.