Skip to content
Front view of the Irritrol RD1200-EXT RainDial-R 12-station outdoor irrigation controller in a weatherproof enclosure.

Irritrol RD1200-EXT RainDial-R 12-Station Outdoor Controller

Brand: Irritrol
Save 24%
$717.27
$546.92
SKU RD1200-EXT
In Stock (2)

Notify me when back in stock

The Irritrol RD1200-EXT RainDial-R is a durable, feature-rich 12-station outdoor irrigation controller designed for residential and light commercial systems. It combines easy programming with advanced water-management compatibility to reduce overwatering and simplify seasonal scheduling.

  • Built-in transformer: Internal 120V to 24VAC transformer — no external transformer required.
  • Flexible scheduling: Three independent programs with up to 3 start times per program (9 starts total), skip-day and odd/even date options.
  • Precise run times: Station runtimes from 1–59 minutes (1-minute increments) or up to 6 hours (6-minute increments).
  • Weather-smart ready: Compatible with Climate Logic and SMRT Logic systems to automatically adjust watering based on conditions.
  • Sensor & remote ready: Rain sensor terminal and CRR remote compatibility for easy integration.
  • Durable design: Weather-resistant outdoor enclosure, modular control module, battery backup, and master valve/pump start capability.

Includes clear/erase-by-program, program stack/overlap options and a modular layout that simplifies installation and servicing. Backed by a multi-year warranty and wide accessory support, the RD1200-EXT is a reliable choice for efficient irrigation management.

Reviews

Frequently Asked Questions

What power does the RD1200-EXT require for operation?
Uses standard 120 VAC input and a built-in 24 VAC, 1.25 A transformer; a 9V battery is required for backup.
Can the controller adjust watering based on local weather?
Yes. Supports Climate Logic and SMRT Logic wireless systems to automatically increase or decrease watering based on conditions.
How many programs and start times can I set?
Three independent programs with up to 3 start times per program (9 starts total); supports skip-day and odd/even scheduling.

Add a FREE Pair of Gloves to Your Order

Spend $35+ Add a FREE Pair of Gloves to Your Order Select Your Size