Hunter re-introduces the Dual-1 and Dual-2 decoders in a slim-line design. Other enhancements include solid copper red-and-blue wire leads, for more positive connections to the two-wire path, and a slightly reduced standby current draw (2.8 -3 mA).

There is no change to the Dual decoder operating system (firmware). The new design is completely backward-compatible with all existing Dual components, and may be mixed within the same system with the older models.

The Dual-S surge arrester will not be changing shape, but will also get the solid copper wire leads for connection to the two-wire path.