Digital Wrist Blood Pressure Monitor For Measuring Arterial Pressure Features: Original Import Chip and Converter, Characterized by High Accuracy and Long Service Life Intelligent Simulation Test ProcessRapidly Measure Systolic Blood Pressure, Diastolic Blood Pressure and PulseClearly Visible Large Screen LCD Digital DisplayAutomatic Memory 90 Groups Measurement ResultsIntelligent Automatic Shutdown FunctionCan Be Queried SequentiallyEach Set of Measurement Results Specifications: Display: LCD Digital Display Screen Measurement Range: Blood Pressure 0~280mmHg Pulse 40~200 Times / Min Measurement Error: Blood Pressure +_ 3mm Hg or < 2% , Heart Rate + 5% Memory Capacity: 90 Sets of Measurement Data and Time Compression Method: Automatic Pressurizing Pump Decompression Methods: automatic Decompressurizing Pump Measurement Interval: 1mmHg Operating Temperature and Humidity: +10~+40/40%~85%R.H. Product Weight: 105g Product Size: 70*72*23 Mm ( Wristband in Not Included) Wristband Range: 135~195mm Pressure Sensing: Semiconductor Pressure Sensor Power Supply: 2 Section 7 Battery (not Included in the Package) Package Inludes: 1 X Blood Pressure Monitor (without Battery) 1 X English User Manual 1 X Retail Box 1 X Plastic Case.