Heart Sure Pulse Oximeter A320 The Heart Sure Pulse Oximeter A320 is a reliable and easy-to-use device designed for measuring pulse rate and non-invasive spot-checks of functional oxygen saturation (SpO2) in the blood. Whether for pre/post-exercise monitoring, post-operative care, or managing respiratory conditions, this pulse oximeter offers a convenient solution for those needing regular oxygen level tracking. Key Features: Accurately measures Oxygen Saturation (SpO2) and Pulse Rate (PR) Real-time spot-check measurements with easy operation Dual-color OLED display with big font and six display modes Multi-directional display for versatile viewing angles Sound notification alerts for critical readings Portable and convenient design with a carry bag included Low perfusion measurement at 0.3% 2-year warranty for peace of mind Usage Directions: Please read the full Instructions for Use provided with the product before using. To use, press the power button for 2 seconds to turn the device on. Open the clamp and place your finger into the rubber hole, ensuring the nail surface is facing upward. Release the clamp to begin measurement, and wait a few seconds for the data to appear. Warnings: Always read the label and follow the directions for use. This device is intended for external use only and should not be used on children under 1 year old as the results may not be accurate. The Heart Sure Pulse Oximeter is designed as an adjunct in patient assessment and should be used alongside other clinical assessment methods.