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ESP-RZX Series Controllers

4, 6 or 8 Zone Contractor-Grade Controller for Residential Use

Rain Bird ESP-RZX Controller

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The popular Rain Bird ESP Series of sprinkler controllers has been expanded to provide a contractor grade irrigation controller for residential applications.

The ESP-RZX provides zone based set up that is easier to understand by untrained users. Fixed 4, 6 and 8 zone models are available.

The ESP-RZX provides flexible scheduling features that make the controller ideal for a wide variety of applications including residential irrigation systems.

Easy to Use
The ESP-RZX Controller was designed with ease of use in mind. Zone-based scheduling allows every valve to be scheduled independently.. The large LCD display shows all of the programming for each zone at the same time. Simple graphic based user interface is easy to understand and presents every controller feature at your fingertips.

Controller Features

  • Large LCD display with easy to navigate user interface
  • Weather Sensor input with software override
  • Master valve/pump start circuit
  • Non-Volatile (100- year) program memory
  • Programmable under battery power

Scheduling Features

  • Zone based Scheduling, allows for independent schedules assigned to each zone. (Run times, Start Times and Watering Days are customizable by zone)
  • 6 independent Start Times per zone
  • 4 Watering Days options by zone: Custom days of week, ODD calendar days, EVEN calendar days, Cyclic (every 1 – 14 days)
  • Manually water ALL or SINGLE zone on demand

Advanced Features

  • Electronic diagnostic circuit breaker
  • Contractor Rapid Programming™ and “Copy previous Zone” for faster initial set up
  • Weather Sensor bypass
  • Weather Sensor bypass by Zone

Easy to Install Controller Hardware

  • The ESP-RZX Controller requires only two mounting screws. A guide for ½“ or ¾” conduit allows for professional installation of field wires into the cabinet.
  • Plastic wall-mount case
  • 4, 6 or 8 station units
  • 2 x AAA batteries for time and date backup (included)

Operating Specifications

  • Station timing: 0 to 199 min
  • Seasonal Adjust; -90% to +100%
  • Independent schedule per zone
  • 6 Start Times per zone
  • Program Day Cycles include Custom days of the week, Odd, Even, & Cyclical dates
  • Manual SINGLE zone
  • Manual ALL zones

Electrical Specifications

  • Input required: 120 VAC ± 10%, 60Hz
    International models; 230 VAC ± 10%, 50Hz
  • Output: 24 VAC 650mA
  • Power back-up: 2 x AAA batteries maintain time and date while nonvolatile memory maintains the programming


  • UL, cUL, CE, C-Tick, FCC Part 15, Industry Canada ICES-03, IRAM S-Mark


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

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Indoor Models  

  • RZX4i-120V: Indoor 4 Station ESP-RZX (120V)
  • RZX6i-120V: Indoor 6 Station ESP-RZX (120V)
  • RZX8i-120V: Indoor 8 Station ESP-RZX (120V)
  • RZX4i-230V: Indoor 4 Station ESP-RZX (230V)
  • RZX6i-230V: Indoor 6 Station ESP-RZX (230V)
  • RZX8i-230V: Indoor 8 Station ESP-RZX (230V)
  • RZ4i-230V: Indoor 4 Station ESP-RZ (230V)
  • RZ6i-230V: Indoor 6 Station ESP-RZ (230V)
  • RZ8i-230V: Indoor 8 Station ESP-RZ (230V)
  • RZX4i-ARG: Indoor 4 Station ESP-RZX (ARG Only)
  • RZX6i-ARG: Indoor 6 Station ESP-RZX (ARG Only)
  • RZX8i-ARG: Indoor 8 Station ESP-RZX (ARG Only)

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Outdoor Models 

  • RZX4-120V: Outdoor 4 Station ESP-RZX (120V)
  • RZX6-120V: Outdoor 6 Station ESP-RZX (120V)
  • RZX8-120V: Outdoor 8 Station ESP-RZX (120V)
  • RZX4-230V: Outdoor 4 Station ESP-RZX (230V)
  • RZX6-230V: Outdoor 6 Station ESP-RZX (230V)
  • RZX8-230V: Outdoor 8 Station ESP-RZX (230V)
  • RZX4-AUS: Outdoor 4 Station ESP-RZX (AUS Only)
  • RZX6-AUS: Outdoor 6 Station ESP-RZX (AUS Only)
  • RZX8-AUS: Outdoor 8 Station ESP-RZX (AUS Only)