The Irritrol RD1200-EXT-R Rain Dial-R is a twelve-station outdoor irrigation controller for larger residential and light-commercial landscapes. It offers the highest station count in the standard Rain Dial-R family while retaining familiar local programming and support for optional Irritrol weather, remote-control, and connected-management accessories. The outdoor cabinet is designed for exterior wall mounting, and the enclosure key is sold separately.
Three independent programs let the user separate turf, shrubs, drip irrigation, specialty plantings, or other watering groups. Each program supports three daily start times for up to nine total starts. Station run time can be set from 1 to 59 minutes in one-minute increments or from 1.0 to 5.9 hours in six-minute increments. Water budgeting, monthly percentage presets, odd/even scheduling, skip-day intervals, excluded days, station delay, test-all-stations operation, and assignable pump/master-valve control provide flexibility for larger systems.
The controller includes a rain-sensor input and is compatible with optional Climate Logic weather sensing, SMRT Logic remote access, and CRR handheld remotes. These accessories are sold separately. A 9-volt alkaline battery, also not included, supports armchair programming and maintains time and date during a power interruption.
Key Features
Twelve fixed irrigation stations
Outdoor wall-mount cabinet
Three independent programs
Three start times per program
Run times from 1 minute to 5.9 hours
Weekly, odd/even, and interval watering schedules
Water budgeting with monthly percentage presets
Delay between stations for well recovery
Rain-sensor input with bypass
Assignable pump/master-valve circuit
Compatible with Climate Logic, SMRT Logic, and CRR accessories
Common Uses
Larger homes with up to twelve irrigation zones
Light-commercial landscapes
Properties with separate turf, shrub, drip, and specialty programs
Outdoor replacement of a compatible twelve-station Rain Dial controller
Compatibility and Installation Notes
This is the twelve-station outdoor model. Use compatible 24 VAC valve solenoids and follow Irritrol instructions for field wiring, grounding, sensors, and pump relays. Climate Logic, SMRT Logic, CRR remotes, rain sensors, the 9-volt battery, and cabinet key are sold separately.
Frequently Asked Questions
Does RD1200-EXT-R include twelve station outputs?
Yes. It is the fixed twelve-station outdoor Rain Dial-R model.
Is smart weather adjustment built in?
No. Climate Logic equipment is required for automatic local weather adjustment.
Can programs overlap?
The Rain Dial-R includes a stack-or-overlap option, allowing the system to restrict overlap or permit supported simultaneous program operation.
Why Buy the RD1200-EXT-R from Big Frog Supply?
The page clearly identifies the twelve-station outdoor model and removes the previous incorrect indoor model reference. Big Frog Supply also carries compatible Irritrol sensors, remotes, valves, solenoids, and repair parts for larger Rain Dial-R installations.
Product Videos
Product Type Outdoor irrigation controller
Manufacturer Part Number RD1200-EXT-R
Station Count 12 fixed stations
Programs 3
Start Times 3 per program; 9 total
Station Run Times 1-59 minutes or 1.0-5.9 hours
Watering Schedules Days of week; odd/even; 1-31 day interval
Maximum Output per Station 24 VAC; 0.5 A
Maximum Output to Valves 24 VAC; 1.0 A including master valve/pump circuit
Transformer Input 120 VAC; 60 Hz
Transformer Output 24 VAC; 1.25 A
Battery 9V alkaline; not included
Sensor Input Included with bypass
Optional Connectivity Climate Logic; SMRT Logic; CRR remote
Height 7-3/4 in.
Width 10-3/4 in.
Depth 4 in.
Enclosure Outdoor wall mount
