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Expand your Sprinkler System Using your Existing Irrigation Controller and Wiring
DuWa Products 4ZEXT Irrigander 4/2 Pro Expander
DuWa Products 4ZEXT Irrigander 4/2 Pro Expander
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Installation Diagram
DuWa Products 4ZEXT Irrigander 4/2 Pro Expander
Item# 31380
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  • Control up to 4 zones using just 1 field wire plus common
  • Each Decoder output can drive up to 1 amp (2 valves)
  • Decoders are sealed to protect them from moisture
  • Metal oxide varistor surge suppression technology
  • Industrial grade components for maximum reliability

Essential Info

The Irrigander 4/2 Pro Expander is a 4 zone irrigation expander designed to expand medium size systems that have enough outputs available on the irrigation controller to drive the additional zones. The Irrigander 4/2 Pro Expander has two 2-zone decoders allowing 4 valves to be driven in 2 locations. The Irrigander 4/2 Pro Expander uses our proprietary Irrigander 2-wire Technology.


More Info

The Irrigander 4/2 Pro Expander is comprised of two types of modules: an Encoder that is installed close to or inside the sprinkler controller; Decoders that are installed close to the valves to be controlled. One dedicated field wire is attached to the Irrigander 4/2 Pro Expander's output. The 4 inputs to the Encoder are connected to any available 4 irrigation controller outputs. The dedicated field wire and the system wide common wire are connected to the two Decoders and the outputs from each decoder are connected to the valves to be controlled. Add optional Irrigander Surge Suppressors to minimize potential damage from lightning.


  • Power Requirements: 24 -30 VAC provided by irrigation controller
  • Power: idle 0.3 watt; operating 1.0 watt max
  • Valves per Zone: Each output from the Irrigander 4/2 Pro expander’s Decoders can drive 1 or 2 valves. Connecting more than 2 valves to any single output may cause improper operation and may cause the protection fuse to open in the Encoder.
  • Supported Irrigation Valves: Any 24 VAC solenoid activated irrigation valve can be used. DC low voltage valves should not be used.
  • Supported Irrigation Controllers: Virtually any irrigation controller that uses 24 VAC valves and a common connection on the output can be used.
  • Operating Range: The Irrigander 4/2 Pro expander Decoders can be located up to a total of 850 feet from the Encoder using 18 gauge field wiring or 2000 feet using 14 gauge field wiring. The valves to be controlled can be up to 100 feet from each Decoder using 18 gauge wiring.
  • Simultaneous Active Zones: The Irrigander 4/2 Pro expander can only have one output active at a time. If more than one input is active, the Irrigander 4/2 Pro expander will only activate one output zone.
  • Encoder Environmental Specifications: Operating: 0°C to +50°C (+32°F to +122°F) Non-Operating: -40°C to +70°C (-40°F to +158°F) The Encoder is not waterproof; enclose the Encoder unit in a suitable weather proof enclosure if installed outdoors.
  • Decoder Environmental Specifications: Operating: -20°C to +50°C (-4°F to +122°F) Non-Operating: -40°C to +70°C (-40°F to +158°F) The Decoder is designed for harsh environments and is suitable for most outdoor conditions including wet environments. However the decoder should not be placed where it is operated under water.
  • Warranty: DUWA PRODUCTS LLC, hereinafter referred to as the manufacturer, warrants the Irrigander 4/2 Pro Expander to be free from defects in workmanship and materials for 1 (one) year from the date of sale.
Important notes:
Only merchandise credit for defective items returned within 30 days of purchase. No other returns allowed on this item.
Manufacturer contact information: DUWA PRODUCTS, LLC, Tel: (866) 984-7744 Ext 702


Installation Diagram       
Installation Diagram       


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