2GIG-3GA-A-GC3, GC3 AT&T CellSled Cell Radio (ADC)

2GIG's GC3 is the most advanced security system ever put out by Nortek's 2GIG line. Revolutionizing the industry when they produced the self-contained Go!Control 2, the predecessor to the GC3, 2GIG has made a number of incredible upgrades to this new system.

A sleeker design, and an updated look, are among the most appealing of the cosmetic changes.

But it's peripherals are no exception, even including the cellular radios that are put inside the system itself. The radios are installed to the side of the panel. Unlike the Go!Control 2, the GC3 doesn't require a fully opened panel to install. It is slid in through a side compartment.

Moreover, unlike the free-standing antennae in the older Go!Control units, this cellular card and plastic encasing avoids the problem of having to risk the safety of the fragile connectors and wiring that a naked circuit board would have.