The Irritrol RD900-EXT RainDial is a weather-adaptive outdoor irrigation controller that manages up to nine stations. Designed for straightforward installation and reliable day-to-day operation, it combines the proven RainDial scheduling system with optional weather-based Climate Logic control to reduce overwatering and conserve water across residential and light commercial landscapes. 9 independent station outputs provide precise zone-by-zone watering and support flexible system layouts and expansion. Climate Logic® compatible — when paired with the Climate Logic wireless weather sensing system the controller automatically adjusts run times based on local temperature and conditions. Rain-sensor ready with a dedicated terminal and sensor bypass switch to prevent irrigation during wet conditions and save water. No external transformer required; built-in power management streamlines wiring and simplifies installation. Supports three programs with configurable overlap control so up to three programs or stations can run simultaneously, or you can restrict operations to avoid overlapping station runs. Compatible with the CRR remote series and features user-friendly controls for quick program edits and selective program erasure without affecting other schedules. Downloadable product documents (Sell Sheet, User Guide, Quick Reference) are available on the product page. The RD900-EXT is an efficient, dependable choice for homeowners, irrigation contractors, and property managers who need straightforward, water-smart control for small to medium landscaping projects.
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