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The Perfusion Index (PI) conveniently informs you of the strength of your pulse. If the PI value is less than 0.2%, this means that your hands are either too cold or improperly positioned in the pulse oximeter. Simply warm your finger and reposition it so that it is right between the LED light and sensor. No more second guessing if the readings are reliable or why the pulse oximeter is not giving a reading.
The alarm can be set to warn you when your SpO2 and Pulse Rate are beyond set limits.
specific silicone film & Infrared Shield
Double-slide anti-slip design is good fit for your fingers. And the pulse oximeter uses infrared light to measure your SpO2 levels.
Portable and Easy to Carry
One-button measurement, easy to operate, small size, light weight, with a lanyard, outdoor sports also facilitate monitoring, save more your mind. it is a great travel companion.