Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, Digital LED Display 5.75 diameter x 1.8 depth

Carbon monoxide alarm operates on a 120V wired power source with a 9-Volt alkaline battery (included) Digital LED display shows the level of carbon

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Kidde 21026065 Smoke & Carbon Monoxide Alarm with Ghana

Kidde Carbon Monoxide Detector, Plug in Wall with 9-Volt Battery

Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery

Kidde 21026065 Smoke & Carbon Monoxide Alarm with Ghana