"Product Description How to use： 1. Keep the lower edge of the cuff 0.8""-1.2"" (2-3CM) . 2. The trachea is on the inside of the arm and aligned with the middle finger. 3. The cuff should be placed on the arm at the same level as the heart. 4. Leave some space between the cuff and the arm. Make sure one finger can be inserted. Precautions: The cuff is not placed in the correct position, which may affect the accuracy of the measurement. Tips: If damage is found, the cuff should be replaced in time. The cuff should also be replaced. If the monitoring device displays a message indicating an air leak. Cleaning and Disinfection: It can be cleaned with a damp cloth dampened with soapy water. It can be disinfected by wiping with 70% ethanol. *lf the connector that comes with the cuff is not suitable for your machine.Please replace with the connector of your blood pressure monitor."