Description: Intelligent automatic compression and decompression measure systolic, diastolic and pulse at the same time; Easy to operate, switching button to start measuring; Can read single or all measures; Intelligent device debugging, automatic power to detect; Large-scale digital liquid crystal display screen. Right Measurement Posture: 1.Put elbow joint on the table; 2.The wrist band should be kept at the same height as the heart; 3.Palm up, relax the body,blood pressure monitors are up, and connect the wrist band with left hand form 5-10mm; 4.Seize the end of wrist, and pulling in the same time, tied to the wrist, don't leave bland gap between wrist band and wrist. If the wrist band is too long, it can be properly fixed. Power supply: DC 5V (USB not included) (4*AAA not included) Measurement Method:Oscillographic measurement method Measurement Range:Pressure-0-280mmHg(0-37.3kPa);Pulse-40-199 beats/min Accuracy:Pressure-Within A?a?3mmHg; Pulse:Within A?a?5% Storage Capacity:2X99 memory storage Operating Temperature:5-40A?A?15%-80%RH Storage Temperature:-20-55A?A?10%-93%RH Measuring Range:About 220-320mm Product Weight:About416g(Batteries not Included) Dimension:1269860mm Pressure mode:Automatic pressure mode Exhaust way:Automati rapid exhaust Pressure Testing:Semiconductor pressure sensor Pulse Testing:Semiconductor pressure sensor Package includes: 1 x Full-automatic Upper Arm Blood Pressure Monitor 1 x Arm Cuff 1 x User Manual 1 x Storage Bag Heart Monitors Sports & Outdoors beats Health & Beauty