Photo 1 of Siterwell Detector, 10-Year Fire Alarm Smoke Detector with Built-in 3V Battery and Photoelectric Technology, Fire Detector with Low Battery Warning and Silence Function, UL217, GS508C, 2 Packs

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Photo 1 of Siterwell Detector, 10-Year Fire Alarm Smoke Detector with Built-in 3V Battery and Photoelectric Technology, Fire Detector with Low Battery Warning and Silence Function, UL217, GS508C, 2 Packs