Features:<br />Home electronic sphygmomanometer is compact and portable, and can measure bloods pressures any time and anywhere.<br />It supports double person measurement data storage, and each person can record 99 groups of data, which is convenient for comparison and observation of historical data.<br />LCD display ensures clear numbers for the elderly and you can see the systolic pressure, diastolic pressure and pulse easily.<br />Clock function, you can set year, month, day, hour, minute by yourself easily.<br />Arm type of design,you need to take off your coat or your sweater for measuring accurately.<br />WHO sphygmomanometers indicate the status of bloods pressures, which is convenient for users to accurately judge whether the bloods pressures is normal.<br />The Systolic pressure and diastolic pressure separately show people can judge the data whether in the normal range at first sight.<br />Larger memory storage and irregular heartbeat detection,remind irregular heartbeat and show average measurement of the last three times.<br />Low power detection function, detect low power under working state, LCD display shows low power.<br />Dual power supply, battery powered or USB plug-in (cable and adapter required are not included).<br/>Specifications:<br />Color: White<br />Material: ABS &#43; PC<br />Measuring arm circumference: 220-320mm / 8.7-12.6in<br />Measurement ranges: bloods pressures: 0 ~ 280mmhg (0 ~ 37.3kpa), pulse rate: 40 ~ 195 times / min<br />Measurement accuracy: bloods pressures value ± 0.4kpa (± 3mmHg), pulse number reading value ± 5%<br />Working temperature: 10 ℃ ~ 40 ℃<br />Working humidity: 40% ~ 85%<br />Storage temperature: - 20 ℃ ~ 50 ℃<br />Storage humidity: 15% ~ 90%<br />Display screen size: 41 * 61mm / 1.6 * 2.4in<br />Battery model: 4 * 1.5V (4 AAA alkaline, shipment without battery)<br />Plug: USB (Not include)<br />Package weight: 313g/11oz<br />Pacakge Size: 13.7*10*8.6cm/5.4*3.9*3.4in<br/>Packing List:<br />1 * Sphygmomanometer<br />1 * Arm Band<br />1 * English User Manual