Home Automatic Wrist Blood Pressure Monitor Blood Pressure Voice Digital Oxygen Blood Glucose Blood Pressure Instrument.    Features: - Smart pressure. - 90 sets of data memory function. - WHO Blood Pressure Health Warning Bar. - Heart rate irregularity function. - Overpressure protection. - Intelligent automatic shutdown function. - Each set of measurement results can be queried sequentially.    Specifications: Product: Automatic Wrist Blood Pressure Monitor;  Product net weight: 125g;  Product gross weight (including packaging): 250g;  Product size: 63*66*30 (not wristband);  Wristband range: 135~195mm;  Packing size: 95*95*95mm;  Display: LCD digital display screen;  Measurement range: blood pressure 0~280mmHg pulse 40~199 times/minute;  Pressurization method: automatic pump pressure;  Decompression method: solenoid valve control decompression;  Measurement error: blood pressure ±3% heart rate ±5%;  Memory capacity: Memorize 90 pairs of measurement data and time;  Pressure Sensing: Semiconductor Pressure Sensors;  Power: 2 * 1.5 V AAA battery (does not include battery);  Measurement interval: 1mmHg;  Operating temperature and humidity: +10°C~+40°C/40%~85%R.H;  Storage temperature and humidity: -20~°C+50°C/15%~90%R.H.    Package Included : 1 X Automatic Wrist Blood Pressure Monitor.