The device is a Pressure Sensor that measures pressure 30 to 280mmHg and Pulse 40 to 199/minute. Calibration Accuracy for Pressure is ±3 mmHg and Pulse is ±4% of reading. The Inflation and Deflation is automatic. One-touch operation is provided. The measurement method is Oscillometric and period is 30seconds to 1minute. It offers Pulse detect beep buzzer and 60 sets memory function. It runs with 2 "AAA" batteries. It offers auto power-off facilities for Power Saving. The dimension of the device is 80.42mmx83.86mmx32.69mm and weight is 120g.