AEON A300 Fingertip pulse oximeter, based on all digital technology, is intended for noninvasive monitoring or spot-check measurement of Oxygen saturation and Pulse rate. Features: Lightweight and Easy-To-Use. Color OLED display, simultaneous display for testing value and plethysmogram. Big Fonts mode, for easy reading Adjustable Spo2 & Oxygen parameters. Enable unidirectional of interface Low Battery voltage indicator Visual alarm function. Real-time spot-checks Auto switch off mode.