First Alert SMCO110LED-AC, Hardwire Combination Smoke & Carbon Monoxide Alarm with LED Strobe & 10-Year Battery Backup, 1-Pack

Additional Details from the Manufacturer

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More features

• First Alert's Precision Detection advanced sensing technology reduces cooking nuisance alarms and delivers early warning
• Integrated combination smoke and carbon monoxide alarm and strobe light in one device
• Integrated smoke alarm and strobe light in one device. Powerful LED strobe light provides effective visual warning for hearing impaired residents.
• Interconnects with most First Alert and BRK alarms so when one sounds, all compatible alarms sound to provide an early warning
• Test/Silence button allows for efficient testing and temporarily silences alarm for up to 8 hours