First Alert BRK Hardwired Smoke & Carbon Monoxide Alarm

4 available - Model SC9120BA Manufacturing date April 2024 = good until April 2034. Pick up North of Fergus. No shipping. The First Alert SC9120BA Hardwired Combination Smoke and Carbon Monoxide Alarm uses an electrochemical CO sensing technology and Ionization sensor for smoke detection. It includes a 9-volt battery for continued function in the event of a power outage, and it features a test/silence button, tamper-resistant locking brackets, and a universal mounting bracket. This CO smoke detector can be connected to other compatible BRK and First Alert hardwired smoke and carbon monoxide detectors. Its latching alarm indicator automatically identifies which unit initiated the alarm--even after the conditions that set off the alarm have subsided. Can connect to other compatible BRK or First Alert CO and smoke detectors Light indicates if the alarm is for smoke or for carbon monoxide Single test/silence button for simple operation Hardwired CO smoke alarm features Side-load battery compartment battery backup for constant monitoring