"Photoelectric smoke detectorSafety standard: EN 14604:2005+AC:2008Sensor type: photoelectricOperating life: 10 yearsPower supply: 3-V CR123A lithium battery (not replaceable)Standby current: < 6 µA (average)Alarm current: < 30 mAAlarm volume: >= 85 dB at 10 ft (3 m)Operating temperature and humidity: 4.4 - 37.8°C, >= 85% RH (non-condensing)Mute duration: