... 0.15MPa ±30%14.Alarms: Internal fault, Low battery voltage, AC failure, Door open, Occlusion, Air in line, Empty, Heat ... malfunction, Interrruption of the AC power supply15.Alarm volume: ≥65dB (A)16.Pump running noise: ≤50dB (A)Power Supply & BatteryInner battery: ... NiMH 9.6V AA 1500mAh, Operating ≥4 hours after full chargePower source: AC 100~240V ...