Hunter NODE-400 4-Zone Battery Sprinkler Controller — Waterproof IP68, Easy Programming

Hunter NODE-400 is a compact, battery-powered 4-zone irrigation controller built to run reliably inside valve boxes and other power-limited locations. The NODE-400 packs professional scheduling features into a rugged, fully sealed enclosure so you can manage multi-zone landscapes where AC power isn't available. Designed for contractors and savvy homeowners, it accepts one or two 9V alkaline batteries or an optional Hunter solar kit for long-term, low-maintenance operation. With IP68 protection, Easy Retrieve™ memory, and flexible program and start-time options, this controller is engineered to withstand flooded valve boxes and harsh outdoor conditions while keeping irrigation precise and simple.

How do I set up watering schedules with the NODE-400?

Programming the NODE-400 is straightforward using its clear LCD and simple menu flow. The unit supports three independent programs, each allowing up to four start times per day, and individual zone run times up to six hours. Seasonal Adjustment lets you quickly scale run times without re-entering each setting.

• Create up to 3 programs (A, B, C) for different landscape needs.
• Set 4 start times per program to water early morning and evening.
• Adjust run times per station up to 6 hours for drip or deep-root irrigation.
• Use Seasonal Adjustment (10–150%) to fine-tune watering with changing weather.

What power options keep the NODE-400 running in remote locations?

The controller runs on a single or dual 9V alkaline battery arrangement for immediate, wiring-free operation. For installations where battery maintenance is impractical, the NODE-400 supports an optional Hunter Solar Panel Kit (SPNODE) to provide continuous, maintenance-free power. Easy Retrieve™ memory preserves programming during battery swaps so schedules remain intact.

• Operates on one or two 9V batteries for simple, off-grid installs.
• Compatible with the SPNODE solar kit for sustained, maintenance-free energy.
• Retains program data during battery changes with Easy Retrieve™ memory.
• Low-power design to extend battery life in field conditions.

Is the NODE-400 durable enough for valve box and wet conditions?

Yes — the NODE-400 is built to survive harsh outdoor environments. Its IP68-rated enclosure is fully sealed and submersible up to 12 feet, making it suitable for valve boxes prone to flooding or heavy moisture exposure. Rugged construction and simplified wiring help reduce failure points in the field.

• IP68 rating: fully sealed and submersible to 12 feet.
• Designed specifically for valve box mounting and surface installations.
• Durable components resist dirt, water intrusion, and extreme weather.
• Compact footprint fits tight spaces common on commercial and residential sites.

What irrigation accessories and valves work with this controller?

The NODE-400 works with 9V DC latching solenoids (sold separately) and supports a master valve output for system-level control. It also accepts Hunter Clik sensors and other compatible weather-responsive devices so your schedule can respond to environmental conditions. Note that solenoids and some sensors may be purchased separately depending on the job.

• Supports 9V DC latching solenoids for valve-mounted control (sold separately).
• Includes master valve terminal for additional system control.
• Compatible with Hunter Clik and third-party sensors for rain freeze shutoff.
• Valve-box friendly connectors and mounting flexibility reduce field labor.

Who is this for: The Hunter NODE-400 is ideal for contractors, landscape professionals, and homeowners who need reliable multi-zone irrigation without access to AC power. It suits valve-box installations, remote sites, pop-up parks, or temporary irrigation setups where waterproofing, flexible scheduling, and low-maintenance power are priorities. Choose NODE-400 when you want proven irrigation features in a compact, weatherproof package that keeps systems running even in the toughest outdoor conditions.

FAQ

Q: Can NODE-400 run from solar power?

A: Yes. The NODE-400 is compatible with the Hunter SPNODE solar panel kit for continuous, maintenance-free power.

Q: Is the controller waterproof for valve boxes?

A: Yes. It has an IP68 rating, fully sealed and submersible up to 12 feet for flooded valve box protection.