When it comes to protecting your family, you can never be too safe. The FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector is a great way to keep your family safe in the event of a fire or carbon monoxide leak. This detector is hardwired, so it will continue to work even if there is a power outage. Additionally, it features an electrochemical carbon monoxide sensing technology as well as an ionization sensor for smoke detection. With its easy-to-read indicator lights, you'll always know the status of your detector. Plus, the low-battery signal ensures that you never have to worry about your detector being out of power. In the event of a fire, every second counts. The FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector can help give you and your family the extra time you need to safely evacuate your home. This detectors well-designed features make it a must-have in any home.