This device is a digital automatic blood pressure and pulse rate monitor for the arm, produced by the Japanese company Citizen, model Citizen CH-456. The device is mainly used in homes and medical centers to monitor blood pressure levels and prevent complications of its elevation. Key specifications and features of the device: Measurement Method: Fully automatic operation using oscillometric technology with a single touch of the power button (One-Touch Operation). Display: Large digital LCD screen clearly displays readings (systolic, diastolic, and heart rate together). WHO Indicator: Features a colored bar on the left side to classify blood pressure levels (normal, high, etc.). Memory: Stores up to 90 previous readings for reference and health monitoring. Average (AVG) Function: Automatically calculates and displays the average of the last 3 measured readings. Smart Sensors: Includes an irregular heartbeat detector (atrial fibrillation or irregularity) and an indicator that alerts if excessive body movement occurs during measurement, which may affect the accuracy of the result. Built-in Storage: The design comes with a dedicated rear holder for storing the arm cuff to protect it.