Photo 1 of 2PK First Alert BRK PRC710 Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery , White PRC710 Detector Alarm

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Photo 1 of 2PK First Alert BRK PRC710 Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery , White PRC710 Detector AlarmPhoto 2 of 2PK First Alert BRK PRC710 Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery , White PRC710 Detector Alarm