SITERWELL Hardwired Interconnected 2-in-1 Smoke & Carbon Monoxide Detector — Voice Alert, 2 AA Battery Backup Installed, Self-Check (5 Pack, Up to 12 Interconnect)

Keep your home safe with this SITERWELL 2-in-1 smoke and carbon monoxide detector. The unit is designed for hardwired installation and includes a 2 AA battery backup (installed) to maintain protection during power outages. Multiple alarms can be linked — wired or wirelessly — up to 12 devices so that when one unit activates, all connected alarms sound to alert everyone in the home. Equipped with dual sensors to detect both smoke and CO, the detector delivers a clear voice alert identifying whether smoke or carbon monoxide is present, along with a loud audible alarm in excess of 85 decibels for fast recognition of danger. The combination unit uses a reliable, high-performance chip and a sensor rated for a 10-year life to provide long-term protection. Built to industry safety benchmarks, this product meets UL 217 and UL 2034 standards. A built-in self-check function replaces manual testing — if a detector malfunctions it will notify you promptly so you remain effectively protected.