Irritrol Rain Master Eagle Plus EGP-TW 2-Wire Control in Painted Wall Mount. Unlike other two-wire systems, the Rain Master® 2-wire protocol provides a two-way communication link between the controller, decoders and valves.
This provides the means for testing and diagnostic capabilities within the 2-wire system. The simplicity of the 2-wire field installation, coupled with the enhanced capability of the Rain Master Twice controllers, sets a new precedent for 2-wire control within the irrigation industry.