FAQ:1. What are the common causes of getting blood pressure reading that are inaccurate?(1) Wearing the wrist cuff improperly(2) Activities right before taking a measurement(3) Incorrect body position or moving too much(4) Timing of taking measurements2. Are the readings different between an upper arm blood pressure monitor and a wrist blood pressure monitor?It is quite possible that your readings may be different from your upper arm to your wrist as blood pressure varies throughout the human body. All Justlang blood pressure monitors, whether upper arm or wrist, are validated in the same manner and have the same accuracy specifications.3. Will I see differences between my readings at home compared to readings in my doctor's office?Yes, you will see some differences. This is normal and can occur for many reasons. Some of the more common reasons as below:(1) A persons blood pressure varies throughout the day, so at any given moment your blood pressure can change.(2) You may have a condition known as White Coat Hypertension.&Masked Hypertension.4. Why is my wrist blood pressure monitor giving wrong readings?The most common cause of high readings when using a wrist blood pressure monitor is because the user does not have the wrist monitor at heart level. When using a wrist monitor, pleas ensure the device is at heart level when taking a reading. Also note that there may be actual differences between your blood pressure at the upper arm site and the wrist site.About JustLangOur mission is to make innovation for better life.We are a professional household medical instrument manufacturer coverd an area of 30,000 square meters with 12+production lines in 5,000 square meters dust-free workshop, whose daily production capacity over than 80,000 pcs, committed to providing a full range of product services and solution for family health care.