Universal Security Instruments Sensing Plus Hardwired Combo Smoke, Fire & Carbon Monoxide Alarm

Yes. This unit features a sealed, 10-year battery backup that is designed to last for the entire service life of the alarm, so you never have to worry about replacing batteries or dealing with low-battery chirps.

The device uses advanced multi-criteria sensing and microprocessor intelligence to distinguish between actual fire threats and common household nuisances like cooking smoke, significantly reducing the likelihood of false alarms.

It is designed for straightforward installation. The unit includes a large mounting base specifically sized to cover any drywall imperfections or paint rings left behind by your previous alarm.

Once the device reaches the end of its 10-year service life, you use the included deactivation key to permanently disable the unit, allowing for safe and environmentally responsible disposal.

Yes, it is a 3-in-1 device that provides continuous protection against fast-flaming fires, slow-smoldering fires, and carbon monoxide threats.

It is both. The unit is hardwired into your home's electrical system for primary power, but it includes a permanent, sealed battery backup to ensure it continues to function during a power outage.