GTC Oximeter is devised to monitor the blood oxygen saturation levels or SpO2 level along with the pulse rate. It is easy to use. The user just has switch it on and insert it on the forefinger of the hand they predominantly use. Wait for a couple of seconds and it shall give information about the SpO2 and pulse rate. The oximeter has an automatic power-off mechanism. This product is an easy-to-use device and is an economical device informing about any ailment or disease.