Measurement Method: Oscillometric
 

Testing range: Pressure: (20mmHg to 280 mmHg); Pulse: (40 to 160) count/min
 

Accuracy: Pressure: (±3 mmHg); Pulse: ± 5%
 

Power source: 2 x size AAA DC3V batteries
 

Low electronic detection limit: ≤ 2.2V
 

LCD size: 38mm * 26 mm (L*W)
 

Testing environment: Temperature: 10°C to 40°C RH; Humidity: 15% to 90% RH
 

Storage environment: Temperature: -20°C to 50°C RH; Humidity: 15% to 90% RH
 

Testable wrist length: 135mm to 195mm
 

Data storage capacity: 60 sets
 

Dimension: 74mm*78mm*68mm (L*W*H)
 

Machine pressure will increase and decrease automatically.