Heart Sure Pulse Oximeter A320 Description The Heart Sure A320 Pulse Oximeter measures your Oxygen Saturation (Sp02) & Pulse Rate. It is portable and ideal for monitoring respiratory conditions; pre/post-exercise and pre/post-operative conditions-Measures Oxygen saturation (SpO2)= Measures Oxygen Saturation (SpO2) Measures Pulse Rate (PR) Dual colour OLED display Big font display 6 display modes Sound notification Multi-directional display Portable and convenient Low perfusion: 0.3% Warnings & Precautions Your healthcare professional will advise you whether this product is suitable for your condition. Your healthcare professional will advise you whether this product is suitable for you/ your condition. Always read the label and instructions. Use only as directed. If symptoms persist see your healthcare professional.