Generic Finger Pulse Oximeter Larger Display Black Athletic & Aviation Pulse Oximeter

The media could not be loaded. I recieved a black unit with red readout and not a navy blue with multi color readout. I was not sent the advertised unit and the screen on the unit has a partially obstructed view due to excess glue or something dark colored in behind the screen? Very cheaply made unit with wires hanging out. I'm guessing this thing really retails for $2.

shows a color display, when in fact it's just red, bare wires sticking out of the case, over all a piece of CRAP!