Blood pressure monitor-wrist BPM104 uses pressure sensor that has a measuring range of 30-280 mmHg for pressure and 40-199 beats/min for pulse, and has Oscillometric measurement method. It has a calibration accuracy of ±3 mmHg for pressure and ±4% of pulse reading. It has big LCD display for easy reading. It has dimensions of 64mm(W)x74mm(H)x31mm(D) and weight 109g without the battery. For safety purpose, this device is equipped with the function of emergency stop and has a power saving design. It has memory function that can save and historical results for 60 sets, and low battery indication and date/time display.