The 4-Port Expander of the WMS (Water Management System) series is designed to provide maximum simplicity to the user. From one to four zones can be enabled and activated in sequence. Each zone can be turned On for fixed amounts of time of 5, 10 or 20 minutes. The 4-Port Expander can also be configured to automatically split the turn-on time equally between the active zones.
The WMS-PE 4-Port Expander connects to a main irrigation or garden watering timer or controller. The main controller can be either the WMS-3, WMS-6 or any controller that provides from 12 VAC to 27 VAC. No additional power supply is needed to power the WMS-PE.