1,Wrist Band Range: 135-195mm 2,Display: Digital liquid crystal display 3,Pressure Range: 0-280mmHg 4,Pulse Range: 40-199Times/Min 5,Pressure Mode: Air Pump Pressurizes Automatically 6,Decompression Mode: Solenoid valve Controls Decompression 7,Accuracy Rating:Pressure Value: 3mm Hg; Heart Rate Value 5% 8,Memory Capacity: Double 90 Pairs 9,Force Touch: Semiconductor pressure Sensor 11,Operating Temperature and Humidity: +10 C - +40 C/40% - 85%R.H. 12,Preservation Temperature and Humidity:-20C - +50C/15% - 90%R.H. 13,Power Supply:2*AAA Battery 14,Product Features: a),Intelligent Pressure Mode b),Ninety Pairs Data Memory Function c),WHO Blood Pressure Health Status Alert d),Irregular Heartbeat Lifting Function e),Overpressure Protection Function f),Intelligent Automatic Shutdown Function g),The Measurement Results Can Be Queried Sequentially h),Three - Color - Dimensional Backlight, Blood Pressure More Visual. 15,Packing: 100Pcs/Carton; 20ft container: 220Cartons