ET System

Advanced ET Weather Control For for Pro-C family controllers
Sensor ET
Product Line
Discontinued Models


ET System
ET System
ET System
User installed options

Contact your local distributor for product availability and ordering.



  • Power input: 24 VAC, 50/60 Hz (from host controller)
  • Current draw: 20 mA, maximum
  • Max. distance, controller to ET Module: 2 m
  • Max. distance, ET Sensor to module: 30 m
  • Sensor wire: Includes 30 m of 0,5 mm2 (20 AWG) UL approved wire


Using highly advanced technology, Hunter ET measures key climatic conditions to calculate local evapotranspiration (ET) factors. ET is the combination of two separate processes whereby water is lost from the soil surface by evaporation and from the plant by transpiration. The ET System will initiate a new schedule to replenish only the water that is actually needed for plant and soil conditions. The Hunter WiltGard™ technology can intervene to trigger protective watering when extreme conditions threaten vegetation. The result is a dramatic savings in water, healthier root zones, and longer plant life.

Key Benefits

Calculates evapotranspiration (ET) for individual microclimate to fit the exact landscape requirements
Specific irrigation scheduling for every zone based on the characteristics of each
Enables compliance with local watering restrictions
Non-volatile memory
Full range of scheduling options
Includes 30 m of 0,5 mm2 (20 AWG), 2-conductor for sensor installation
WiltGard™ technology triggers protective watering when extreme conditions threaten plants
Warranty period: 2 years


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CAD Installation Details


CAD Installation Details