Rain Bird F55480 2-Wire Controller - The ESP-2WIRE Controller continues Rain Bird’s legacy of the best-in-class 2-wire experience with an approachable platform for projects up to 50 stations. With new Decoder Auto-Address functionality all decoders connected to the 2-wire path are found and assigned to stations providing significant time savings. After decoders are programmed, the ESP-2WIRE Controller programs just like the popular ESP-ME3 Controller. With no special wire, wire connector or grounding requirements, contractors can now take advantage of all 2-wire benefits with a familiar platform that’s easy to install and program.