Please Note: SC01 is a basic standalone unit; it does not support wireless interconnection, does not have Wi-Fi, and cannot be used with a base station; for interconnection, search for SC01-W | 10-Year Sealed Battery (Not AC Hardwired): Contains a long-life lithium battery that powers the device for its entire 10-year life | 2-in-1 Protection: This combination detector protects your family against two dangers-both smoke and carbon monoxide | Simple Installation: Requires no rewiring; easy to mount this fire and CO alarm on any wall or ceiling with the included mounting bracket, screws and anchor plugs | Loud 85 dB Alarm: Upgraded photoelectric and electrochemical sensors significantly increase the sensitivity of the alarm for a faster response time while minimizing false alarms | Premium Material: Made from an upgraded PC material that is heat-resistant, high-temperature resistant, and corrosion-resistant