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10-Year Battery, Battery-operated Photoelectric Combination Smoke and Carbon Monoxide Detector with Voice Alert

First Alert 10-Year Battery, Battery-operated Photoelectric Combination Smoke and Carbon Monoxide Detector with Voice Alert

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Does it have different sounds for smoke and CO?


Thank you for your question. For Carbon Monoxide, the CO LED light flashes red, and the horn beeps four times and pauses after each set of four beeps. For Smoke, the Smoke LED light flashes red, and the horn beeps three times and pauses after each set of three beeps.

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