Introducing the Livingstone Finger Pulse Oximeter, equipped with an integrated SpO2 probe and processing display module, showcasing SpO2 value, pulse rate, and bar graph. This compact device is small in volume, light in weight, and convenient to carry, ensuring ease of operation with low power consumption. Including a low-voltage indicator to prevent abnormal readings due to a weak battery, it also features an automatic power-off function to extend battery life. In technical terms, this pulse oximeter is commonly used to measure oxygen saturation and pulse rate through the finger, utilising Photoelectric Oxyhemoglobin Inspection Technology combined with Capacity Pulse Scanning and Recording Technology. For usage guidance, it is recommended to consult your medical practitioner.