Detector type: optical. Alarm volume > 85dB at 3 meters. Suitable for rooms from 20 to 40 m². Break time: about 9 minutes. With test button and pause button. With battery indicator. Battery: 3VDC CR123A Lithium, replaceable. Battery life: 1 year. Operating temperature: -10 ~ 40°C. Operating humidity: 25 ~ 85%. Including mounting material. Approval: VDS 3131/ G216009, EN14604.
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