https://www.creative-sz.com/products/lepu-sp-20-digital-portable-handheld-pulse-oximeter-wireless-bluetooth/ The Lepu Medical Grade SP20 Rechargeable handheld spo2 monitor has been approved by FDA, designed to measure SpO2 (blood oxygen saturation), pulse rate (PR), PI (perfusion index), and temperature with high precision (infrared thermometer optional). Suitable for Adults, Neonatal/Neonatal (infant foot oximeter measurement), Pediatric/Pediatric/Toddler. It is available and widely used for home use in medical environments, and comfort monitoring in clinics and healthcare facilities. Features of Lepu SP-20 hand held oximeter Highly accurate measuring SpO2, Pulse Rate and Temperature(optional). 3.5 inch TFT display of PI%, plethysmograph and pulse bar. Adult, pediatric, and neonate measurement. Lithium battery for up to 18 hours. 500 hours SpO2 data storage. PC software for data management.