The Green Wire of the Water Shutoff Valve ELK WSV3 can connect to a Zone to let the M1 know if the valve is Open or Closed. You will need to configure the Zone as Type EOL with the 2.2KΩ Ohm resistor across the Zn and Neg of the zone. When the valve is Open the Zone is Secure and when the valve closes the Zone will become Not Secure .