Size: 69 x 54 x 27mm Display mode: liquid crystal display (LCD) Measurement method: intelligent pressure, oscillometric measurement < p>Measurement range: Blood pressure: (0-280)mmHg / (0-37)kPa (blood pressure) Pulse: (40-199) times / minute Accuracy: ±3mmHg / ±0.4 kPa (blood pressure) ± 5% (pulse rate) Results: high pressure / low pressure / pulse rate Unit conversion: mmHg / Kpa conversion (the unit per default for startup is mmHg) Memory group number: 99 memory pairs Low battery detection: LCD display low battery symbol prompts low battery WHO tip: Blood pressure warning bar shows blood pressure health status Arrhythmia prompt: LCD displays the arrhythmia symbol Overpressure protection: automatic air pressure over 295mmHg (20MS) Power off function n automatic: no operation for 1 minute automatic shutdown Current: dynamic current atmospheric