Toro TMC-424E-OD Outdoor Modular Controller, 4–24 Stations

The Toro TMC-424E-OD is an outdoor-rated modular irrigation controller designed for commercial and large residential sites. It ships with a 4‑station base module and can be expanded in the field to manage 4 to 24 stations using Toro TSM expansion modules, giving installers flexible station counts without replacing the controller.

• Expandable modular design: Starts with a 4‑station TSM-4 base module and supports additional 4‑ and 8‑station TSM modules to reach up to 24 total stations.
• Flow sensing and leak response: Supports Toro flow-sensing modules (TFS) to learn normal flow, detect leaks or line breaks, and trigger alarms or shutdowns.
• Multiple master outputs: Configurable for up to four master valve/pump-start relays using controller and flow-module outputs for complex site requirements.
• Power and surge protection: Available in 120 VAC (60 Hz) or 220/240 VAC (50 Hz) models; standard and high-surge protection options available to meet regional requirements.
• Versatile programming: Four independent programs with multiple start times, program stacking (run up to three programs simultaneously), and cycle-and-soak options with runtimes in seconds or minutes.
• Robust electrical output: 24 VAC station output with per-station and total-load limits; UL/cUL-listed transformer options on supported models.
• Field-ready features: Removable controller module for remote programming, compatibility with wired and wireless rain sensors, and options for remote site management (TriComm).

Dimensions and weight are compact for easy installation: approximately 10 3/4" W x 10 1/4" H x 4 5/8" D (273 x 260 x 117 mm), with indoor and outdoor enclosure weights near 3.2–3.4 kg. Refer to the included Toro sell sheet, user guide, and quick reference for wiring diagrams, module part numbers (TSM-4, TSM-8, TSM-4F, TSM-8F), and complete specifications.