X-Sense XS01-WR mini wireless interconnected smoke detector (6-Pack) and RC01 Pro remote controller (1-Pack). Wireless interconnection technology, if smoke is detected, all interconnection alarms will be triggered. Easily test and silence all interlinked alarms with a 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.