The Microlife OXY 500 BT is a compact fingertip pulse oximeter that provides non-invasive measurement of arterial haemoglobin oxygen saturation (SpO2), pulse rate, and perfusion index (PI). It features Bluetooth connectivity for wireless data transfer to compatible devices. Suitable for both adults and children, the OXY 500 BT is designed for personal use at home, while travelling, or in professional healthcare settings.