Calsense CS3-2W-S 2-Wire CS3000 Stainless Steel Pedestal Controller - The CS3000 controller is available in 8, 16, 24, 32, 40 and 48 stations as a 2-Wire controller and/or conventional controller. An optional 2-Wire board (CS3-2WIRE-OPT) allows a single controller to manage up to 128-independent valves, anywhere along a 7,000' cable run. Decoders are available as a 2-station POC and as a POC decoder. By combining multiple 2-Wire POC decoders, a single controller can manage multiple points of connection, as well as operate a two or three-level bypass manifold.