BRK White Plastic Smoke and Carbon Monoxide Detector with …

This unit from BRK (TM) is a combination smoke detector and electrochemical ion carbon monoxide detector designed to be hardwired to 120 V electrical power. It and can be interconnected with up to 12 smoke alarms, and up to 6 smoke/carbon monoxide combination alarms so all units will go into alarm if any single unit is triggered.

https://www.rona.ca/en/product/brk-white-plastic-smoke-and-carbon-monoxide-detector-with-battery-backup-1044368-71585128