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Pulse oximeters can help you monitor the oxygen saturation of hemoglobin in the arterial blood non invasively. Measuring oxygen saturation is as important as measuring pulse rate and hence pulse oximeters are valuable piece of equipments that can help decide oxygen flow. Working on the principle of photodetection, the pulse oximeters emit infrared rays to detect the oxygen saturation in blood. Microtek has come up with smart pulse oximeters that help you keep a check on the trend.