Product dimensions: 7.56 x 6.84 x 3.1 cm (without bracelet). Storage temperature: -20 ~ 50°C, 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 piece of blood pressure monitor (without batteries). Dual mode with 99 memory measurements each. IMMEDIATE MONITORING - Designed for easy, quick blood pressure monitoring anytime, providing systolic, diastolic readings and heart rate. CLINICAL ACCURACY - Features advanced measurement technology for reliable readings, helpful to check blood pressure levels. HEARTBEAT DETECTOR AND HYPERTENSION INDICATOR - Records heartbeat and indicates if readings exceed normal home blood pressure guidelines. RECALL LAST MEMORY - Memory function saves previous readings to track fluctuations. Portable and user-friendly, easy to carry anywhere. Color: as shown.