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ESP Si Series


  • ESP: Extra-Simple Programming
  • Two independent programs (A and B), with three start times each, allow mixed irrigation applications in a single controller.
  • "Flip Strip" terminal strips permits valve wire hook-up without screws.
  • Wiring skirt for clean looking, professional installation.
  • System water budgeting from 10 to 200% in 10% increments makes seasonal adjustments quick and easy.
  • Station timing in 1-minute increments for precise watering requirements.
  • Programmable day-of-week watering schedule.
  • Independent dual programming.
  • Easy-to-understand AM/PM clock for quick reference.
  • Self-prompting alphanumeric liquid crystal display (LCD)
  • 1A external plug-in style transformer
  • Slim, indoor cabinet.
  • Manual start/advance capability for semi-automatic operation and system testing.
  • Mounting screws provided for convenient installation
  • Large, high contrast LCD
  • Remote ready connector (station sequencing operation) compatible with Rain Bird's RM-1R remote receiver.
  • UL, CSA listed


Operating Specifications

  • Station timing: 0-99 minutes (in 1-minute increments);
    0-198 minutes with water budgeting
  • Automatic starts: 3 per program (6 per day when using dual program capability)
  • Programming schedule: 2-, 3-, or 5-day fixed cycle or 7-day variable cycle
  • Water budgeting: 10-200% in 10% increments

Electrical Specifications

  • Input required: 117VAC @ 1A, 60Hz
  • Output: 24VAC, 1A
  • Overload fuse: 1A (spare fuse provided in access cover)
  • Surge protection: Primary input side has built-in MOV (metal oxide varistor) to protect micro circuitry; output side has one built-in MOV for each valve station
  • Battery backup: A 3V lithium coin cell battery maintains program memory up to several months and keeps timing accuracy during a power outage (battery included with controller)
  • Multi-valve station capacity: Up to two 24VAC, 7VA solenoid valves per station, plus a master valve.


  • Width: 7" (17,8 cm)
  • Height: 8 1/4" (21,0 cm)
  • Depth: 2 1/4" (5,7 cm)