Product name Arm-type Blood Pressure Monitor Model JN-1630 Displayer large LCD screen Measuring method Oscillographic determination method Measurement Range Pressure: OkPa-37.3kPa (0mmHg-280mmHg) Pulse value: (30-180) beats/minute Accuracy Pressure: within ±0.4kPa(3mmHg); Pulse value:±5% of the reading Compressing Automatic pressure pump Aerofluxus Automatic rapid exhaust Pressure examination Resistive pressure sensor Memories Power 2*99 memories Lifetime of batteries DC 6V, 4"AAA Alkaline battery (No battery attached for product) Working conditon: Around 250 measurements Temperature 5-40°C(41-104°F), Relative humidity:15-80%RH Atmosphere Pressure: 86-106Kpa Transportation and humidity storage temperature/ Temperature -20-55°C(-4-131°F) Humidity: 10-93%RH $605 320g Auto shut off Weight Dimension 159mm x 103.5mm x 52.5mm Diameter of cuff 22-32cm or 22-42cm Attachments: Cuff, user manual(include qc pass, warranty card), giftbox Application: Measure human being's blood pressure 5 years