Omron HEM-7112-AP3 BP monitor uses the oscillometric method of blood pressure measurement. This means the monitor detects your blood’s movement through your 
brachial artery and converts the movements into a digital reading. 

Salient features of Omron HEM-7112-AP3 BP monitor: 
Display: LCD digital display. 
Measurement range: Pressure: 0 to 299 mmHg, Pulse: 40 to 180 beats/min 
Accuracy: Pressure: ±3mmHg & Pulse: ±5% of reading. 
Inflation: Automatic by electric pump. 
Deflation: Automatic pressure release valve. 
Rapid air release: Automatic exhaust valve. 
Measurement method: Oscillometric method.