The use skills and detection of disposable blood oxygen probes are mainly aimed at the following groups of people, critically ill patients, newborn children, adolescents and children. They are widely used in daily clinical operations and daily nursing treatment, making it a medical consumable. An essential electronic monitoring device in the middle, which solves many problems for most patients, the SPO2 adapter cables connects to the disposable SPO2 probe at one end and to the monitor at the other end to transmit the signal.