WRIST DIGITAL SPHYGMOMANOMETER ITEM NO PART PACKING DETAILS L W H N.W G.W MW-300 UNIT 6.5CM 78CM 28CM 128G 　 CARTON 42CM 22CM 16CM 5KG 5.6KG UNIT 　 　 PACKAGE 　 　 　 　 　 20PCS CERTIFICATE CE FDA 　 　 　 　 BATTERY 2*AAA BATTERIES MORE DETAILS 1. Measuring range: pressure:0-300mmHg, pulse: 40-200/min 　 2. Measuring accuracy: Pressure: ±0.4kPa (3mmHg), Pulse: ±5% 　 3. Min scale: 0.1kpa (1mmHg) 　 　 　 　 4. Inflation: Automatic by Electric Pump 　 　 　 5. Deflation: Automatic exhaust 　 　 　 　 6. Pressure detection: Integrated silicon pressure sensor 　 　 7. Auto shut-off (30sec after nonuse) 　 　 　 8. Battery life: Approx.2 months with 3-min.usage per day