Product dimensions: 7.56 x 6.84 x 3.1 (without bracelet) Storage temperature: -20 ~ 50 Storage humidity: 15% ~ 90% Operating temperature: 10 ~ 40 C Operating humidity: 40% ~ 85% Display: LCD digital display Measurement method: pulse scan / oscilloscope assay Measurement range: hypertension / hypotension: 20 mmHg ~ 280 mmHg Pulse: 40 to 200 times / min Accuracy: ±3 mmHg, ±0.4 kPa Voltage: 3V Delivery content: 1 x blood pressure monitor (without batteries) Dual mode, each with 99 memory measurements 1. IMMEDIATE MONITORING - This wrist blood pressure monitor features a widescreen digital display designed for easy and quick blood pressure monitoring anytime. It provides systolic and diastolic blood pressure readings along with heart rate. 2. CLINICAL ACCURACY - Equipped with advanced measurement technology, this digital blood pressure monitor delivers fast and accurate results. It ensures reliable detection of high or low blood pressure levels, supporting effective blood pressure management. 3. HEARTBEAT DETECTOR AND HYPERTENSION INDICATOR - The device includes a heartbeat indicator and a hypertension alert system. The hypertension indicator helps identify readings above internationally recognized normal blood pressure thresholds. 4. MEMORY RECALL FUNCTION - The memory recall feature allows users to review the last recorded measurement. This helps track daily blood pressure variations and observe trends over time. 5. COMPACT AND PORTABLE DESIGN - This user-friendly blood pressure monitor is lightweight and portable, making it convenient for home or travel use.