1) The only LED pulse oximeter on the market that will measure your SpO2 levels up to 100%
2) Filtered Glass to reduce eye fatigue.
3) Built using high density ABS plastic to block ambient light from reaching the sensor, increasing the signal to background ratio and the accuracy of the measurement dramatically.
4) Uses soft, hypoallergenic medical grade silicon in the finger chamber to ensure comfort to your finger
5) Uses a self-adjusting spring system to fit your finger snugly into