Product Description: Product dimensions: 7.56 x 6.84 x 3.1 (without cuff) Weight: 280 g Storage temperature: -20 ~ 50 Storage humidity: 15% ~ 90% Operating temperature: 10 ~ 40 C. Operating humidity: 40% ~ 85% Display: LCD digital display Measurement method: pulse sampling / oscilloscope analysis Measurement range: Hypertension / Hypotension: 20 mmHg ~ 280 mmHg Pulse: (40 to 200) beats / min / accuracy: 3 mmHg 0.4 kPa / pulse: 3 percent of the measured value within Voltage: 3V Power: 2 * AAA alkaline battery (not included) Package includes: 1 * piece blood pressure monitor (without batteries) Description: * Accurate and reliable: pressure accuracy is 3 mmHg and pulse measurement accuracy is 5%. It is easy to accurately monitor your and your family's health. It has advanced measurement technology to give you the most accurate readings. * Easy to read: The blood pressure monitor has a three-color, backlit screen so you can read clearly even at night. Just press a button to use, which is very easy for the elderly. * Effective health monitoring: You can quickly measure blood pressure and pulse and detect and monitor abnormal heart rhythms, preventing serious damage to organs and blood vessels.