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Station Indoor Controller ESP-RZX - Rainbird

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Station Indoor Controller ESP-RZX - Rainbird

  • Station Indoor Controller ESP-RZX - Rainbird
  • Station Indoor Controller ESP-RZX - Rainbird
Rainbird Irrigation
Product No. # Stations Dimension (W x H x D)
IE RB1-ESPRZX4I4 stations6.65" x 5.90" x 1.54"
16.89 cm x 14.98 cm x 3.91 cm
IE RB1-ESPRZX6I6 stations6.65" x 5.90" x 1.54"
16.89 cm x 14.98 cm x 3.91 cm
IE RB1-ESPRZX8I8 stations6.65" x 5.90" x 1.54"
16.89 cm x 14.98 cm x 3.91 cm

4, 6, 8 Station Indoor ESP-RZX Controller


Rain Bird’s Simple-to-Program (ESP-RZX) Controllers are the easiest controllers in the irrigation industry to program and operate. In fact, the ESP-RZX controller is so easy to operate you won’t even need to read the instructions.

The ESP-RZX  Controller is an indoor controller that has 4, 6 or 8 zone capability. The ESP-RZX Controller allows you to simply enter a custom irrigation schedule for each zone that matches the plants specific irrigation needs.


Simple to use “At-a-Glance” programming allows you to see all of the irrigation schedule information for each specific zone at the same time on the controller.

  • Independent zone control gives you the flexibility to easily accommodate the diverse watering needs of each zone.
  • The STPi controller allows you to use multiple start times per day on an individual zone basis, helping you maintain a healthier lawn and garden.
  • The Adjust Water feature enables you to easily increase or decrease the irrigation schedule as needed.
  • In the event of a prolonged rain, you can easily suspend the irrigation schedule up to 72 hours using the controller’s Rain Delay feature.
  • The Water Now feature allows you to apply additional water to irrigate a zone without impacting that zone’s previously set schedule.
  • To help manage water restrictions, the controller can be set up to only water on specific days of the week or "odd or even" days.
  • The current date and time, as well as the irrigation schedule are saved in the event of a power outage due to the controller’s non-volatile memory.

Operating Specifications

  • Zone Timing
  • 0 – 240 minutes in one minute increments.
  • 0 – 480 minutes with Adjust Water feature activated.
  • Start Times
  • Up to 6 start times (15 minute increments) can be assigned to each zone.
  • Overlapping start times will stack to prevent two zones from operating concurrently.
  • Day Schedule
  • Each zone can water on any day combination (7 day week) or in ODD or EVEN day mode.
  • Rain Delay
  • The entire irrigation schedule can be suspended up to 72 hours (12 hour increments).
  • Water Adjust
  • The irrigation schedule for the entire controller can be increased by 100% or decreased up to 90% (10% increments).

Electrical Specifications

  • Input Required: 120 VAC, 50Hz
  • Output: 25.5 VAC, 0.65A
  • Surge Protection
  • Primary input side has built-in MOV (metal oxide varistor) to protect micro-circuitry.
  • Output side has 1 built-in MOV for each station.
  • Power Outage Protection
  • A lithium battery saves date and time.
  • Non-volatile memory saves all program information.
  • Valve Capacity: One 24VAC, 7VA solenoid per station plus a master valve.



  • Width: 6.65 in. (16,9 cm)
  • Height: 5.90 in. (15,0 cm)
  • Depth: 1.54 in. (3,9 cm)

Rain Bird ESP-RZX - Seasonal Adjustment

Rain Bird ESP-RZX - Setting the Date and Time

Rain Bird ESP-RZX - Setting Zone Watering Times

Rain Bird ESP-RZX - Manual Watering

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