Kidde 20SD10 Smoke Detector

Yes, this unit is designed to be hardwired into your home's 120V electrical system. It also includes a sealed 10-year battery backup, so it will continue to function even during a power outage.

Photoelectric sensors are specifically designed to detect larger smoke particles, making them highly effective at identifying smoldering fires. This is a great choice for general home use, particularly for detecting fires that start slowly.

You can interconnect this unit with other compatible hardwired Kidde alarms. When one unit detects smoke, all interconnected alarms will sound, providing an early warning throughout your entire home.

The unit has a 10-year lifespan and features an end-of-life warning signal. Once the detector reaches the end of its service life, it will chirp to alert you that it is time to install a new unit.

No, the battery is sealed inside the unit and is designed to last for the full 10-year lifespan of the detector. You do not need to worry about changing batteries, but you should still test the alarm regularly using the test button.

This model is versatile and can be mounted on either the ceiling or the wall, depending on your home's layout and local building codes.