3-Pack XC01-WR Wireless Interconnected Co Detectors + 1-Pack Remote Controller RC01 Pro

3-pack XC01-WR wireless interconnected carbon monoxide detectors and 1-pack RC01 Pro remote controller. The RC01 Pro remote controller is used to easily test and silence all Link+ series wireless interconnected detectors, including wireless interconnected smoke alarms, carbon monoxide alarms, and combination smoke and CO alarms.