Photo 1 of ****No mounting plate***First Alert SMCO210V, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Voice & Location Alerts, 1-Pack

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Photo 1 of ****No mounting plate***First Alert SMCO210V, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Voice & Location Alerts, 1-PackPhoto 2 of ****No mounting plate***First Alert SMCO210V, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Voice & Location Alerts, 1-PackPhoto 3 of ****No mounting plate***First Alert SMCO210V, 10-Year Sealed Battery Combination Smoke & Carbon Monoxide Alarm with Voice & Location Alerts, 1-Pack