First Alert Hardwired Smoke Detector Alarm with Escape Light BRK 7020B

Price is for the set of 2. First Alert Photoelectric Hardwired Smoke Alarm with Escape Light BRK 7020B -Escape light activates with alarm to illuminate a path to safety -Photoelectric smoke sensing technology --detects slow burning fires that puts you at greater risks of smoke inhalation --helps reduce the instances of nuisance alarms caused by cooking smoke or shower steam -Hardwired with battery backup -Single test silence button allows you to test the unit’s functionality -Dimensions: 5" diameter x 2.1"H