The CQ-1 is a great in-wall extension of the CQ product series. It functions just like the other CQ models with plug-and-play simplicity. It fits in a three gang box. The fifteen amp duplex turns on with a single sequence event. A utility box is supplied with the unit. But, any standard three gang enclosure is sufficient. Like other CQ models the CQ1 has a sequence signal line Input and Output port to allow it to be daisy chained with any number of other CQ devices.