Underhill

» http://www.underhill.us/

Makers of 2WIRE modules that convert irrigation controllers to 2-wire operation, so you can use your favorite controller to run a 2-wire system. These modules allow maximum flexibility with new or existing systems. You can expand an existing system's capabilities while minimizing the cost of running all new field wire to accommodate the new zones. It works like magic...maximizing your controller while minimizing installation time and wire usage.

Underhill