Arm Blood Pressure Monitor voice, high precision, easy to detect, with sphygmomanometer year warranty and lifetime maintenance. Quality aftermarket can rest assured that is absolutely guaranteed. Display: LCD. Measurement: Amplitude Resonance Power: 4 on the 5th (AA) battery (DC) 6V Measuring range:? (30-280) mmHg / (4-37) kpa (BP), (40-199) beats / min ( pulse rate) Accuracy: ± 3 mmHg / ± 0.4kpa (BP), ± 5% (pulse rate) Inflatable way:? automatic inflatable fast discouraged: Electronic discouraged valve Memory: 90 sets of memory single time display: Year displays date, time automatic shutdown: 180 seconds unused Battery life: about 250 times the operating environment: temperature 10 ℃ ~ 40 ℃, humidity 15% ~ 80% Storage environment: temperature -20 ℃ ~ ± 55 ℃, humidity 15% ~ 90% Product Size: 136mm (L) × 121mm (W) × 55mm (H) body weight: about 370 grams (including four batteries) Accessories: one arm sphygmomanometer, a fine store bag, manual, certificate Each copy of the 5th battery 4 safe and comfortable fast stable and accurate measurement of the packing list:???? a brand: Mingju Technology Model: AES-U131 is imported: No Measurement: Automatic measurement sites: upper arm type of energy : Power / Battery Products Scope:? for measuring the human systolic blood pressure, diastolic blood pressure and pulse rate available. Product Standard:? YY 0670 "Noninvasive automatic measurement sphygmomanometer" Product Name:? Arm Blood Pressure Monitor