TSM, Inc. - DOUBLER2 - 4 Valves on One Wire / Expand or Repair Your Irrigation System with Ease

DOUBLER Doubler allows independent control of four automatic valves with only one valve wire and the common. When Doubler2 is connected to one station of the controller, it switches when the station is turned on and passes the electrical current to the first valve. The next time that station is turned on, Doubler switches to the next valve. It simply alternates between the valves. If four stations are connected to Doubler by a jumper wire in the controller, it switches between the four valves corresponding to the four stations. Each valve will water for as long as the time set on the controller.