This SM-165 finger pulse oximeter device is one of the best and the latest inventions from SantaMedical. The product perfectly displays the readings of saturation levels of blood oxygen and the pulse rates. The finger clamp in the oximeter is self-adjusting and the design consists of one single-button for making the operation easy and the oximeter easy to use. The portable size of the oximeter makes it easy for any person to carry it anywhere. This is the best product for any pilots and athletes in order to obtain an accurate and a quick readings of the oxygen saturation.