1、Clock function enable you to easily set the year, month, day, hour, minute. Arm band type design, you need to take off the coat or sweater for accurate measurement. 2、Intelligent pressurization and decompression design, with IHB heart rate monitoring function, more practical. 3、LCD screen ensures clear and accurate display, and you can easily check systolic, diastolic and pulse. 4、Systolic and diastolic blood pressure were shown separately, people can tell at a glance whether the data is within the normal range. 5、Large memory storage space and irregular heartbeat detection function, alert irregular heartbeat and display the average value of the last three measurements. Item Type: Blood Pressure Monitor Material: Plastic + Electronic Components Size: Approx. 11.8 x 9.5 x 6.5cm / 4.6 x 3.7 x 2.6in Battery Model: AAAA battery x 4pcs (not included) LCD digital display, easy to read Pulse scanning and oscillography, two measurement methods 99 pairs of memory, IHB arrhythmia detection, WHO blood pressure classification Voltage and electronic quantities detection Storage Temperature: -20℃~50℃ Storage Humidity: 15%~90% Operating Temperature: 10℃~40℃ Operating Humidity: 40%~85% Display: LCD digital display Measurement Method: Pulse scanning method/oscillography method Measuring Range: Hypertension/Hypotension: 20mmHg~280mmHg Pulse: (40~200) beat/min Resolution: 1mmHg (0.1kPa) Accuracy: ±3mmHg (±0.4kPa) Pulse: Within ±3% of read value Voltage: 5V Power Consumption: 0.01W 1 x Blood Pressure Monitor 1 x Bandage 1 x Manual