Hydro-Rain HRC 400 16-Station Wi‑Fi Smart Irrigation Controller — Indoor/Outdoor, Weather‑Aware Scheduling

The Hydro‑Rain HRC 400 is a 16‑station indoor/outdoor Wi‑Fi irrigation controller that delivers smart, weather‑aware watering and easy installation for residential and light commercial systems.

Designed to simplify irrigation management, the HRC 400 pairs a large, easy‑to‑read display and interactive multi‑input dial with factory‑installed power for fast setup. It supports Wi‑Fi connectivity and multi‑site control through a mobile app, integrates local weather and historical ET data, and includes flexible rain delay and sensor bypass options. The result is a programmable controller that reduces manual adjustments while giving installers and homeowners quick access to advanced scheduling features.

How quickly can I install the HRC 400 and get it running?

Installation is streamlined for efficiency: the unit ships with a plug‑and‑go power cord so you won’t need to wire an external transformer in the field. The hinged panel door provides simple access to valve wiring, and conduit knockouts accept common sizes for neat, code‑friendly routing.

• Factory‑installed power cord — no in‑field transformer wiring required
• Hinged panel door for fast valve access and neat wiring
• Knockouts for 1/2", 3/4" and 1" conduit to simplify conduit runs

What smart watering features does it use to save water and time?

The HRC 400 uses a combination of live weather feeds and historical evapotranspiration (ET) data to adjust run times based on real conditions. Programmable settings let you factor in slope, soil type and sun/shade exposure so schedules reflect site‑specific needs instead of generic presets.

• Live weather and historical ET adjustments for smarter runtime decisions
• Site condition inputs—slope, soil, sun/shade—for tailored watering
• Multiple program options to handle different zones and crop types

Can I control multiple controllers from one place?

Yes — multi‑site management allows you to monitor and program several Hydro‑Rain controllers from a single mobile app. That central access streamlines landscape maintenance across properties and makes remote changes immediate and consistent.

• Mobile app supports multiple devices for centralized control
• Remote program changes update stations without site visits
• Unified scheduling and status monitoring for several installations

How does the rain delay and sensor bypass work for unpredictable weather?

The controller includes rain delay and sensor bypass capabilities that can be set manually or triggered automatically. Choices range from short pauses to extended rain holds so you don’t waste water during wet periods or damage plants during heavy rainfall.

• Manual or automatic rain delays: 24, 48, 72 hours or 4–32 days
• Rain sensor bypass technology to prevent irrigation during precipitation
• Easy override options for quick temporary adjustments on site

Who is this for: The Hydro‑Rain HRC 400 fits contractors, property managers and homeowners who need a robust, 16‑station controller that balances professional features with straightforward installation. It’s ideal for new and retrofit residential systems, small commercial landscapes, and multi‑site users who want centralized smartphone control and weather‑adaptive watering without complex wiring.