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The Universal Security Instruments Hardwired MIC1509S 3-in-1 Smoke, Fire and Carbon Monoxide Smart Alarm provides 10-years of continuous protection against 3 deadly threats within the home. New patented Universal Smoke Sensing Technology offers the benefits of both photoelectric and ionization alarms in 1 device to protect against fast flaming and slow smoldering fires. This alarm also features protection against the silent killer - carbon monoxide - making it a 3-in-1 device. The ideal addition for new or replacement installations, this maintenance-free alarm is suitable for houses, apartments and mobile homes in every room. This USI Combination Alarm utilizes a sealed back-up battery (included) that will never have to be replaced throughout the life of the alarm, giving you a decade's worth in peace of mind even in the event of a power outage.
3-in-1 smart alarm provides 10-years of continuous protection against fast flaming fires, slow smoldering fires and carbon monoxide
Sealed battery (included) will never have to be replaced throughout the life of the alarm
Features microprocessor intelligence to virtually eliminate nuisance alarms