Hunter Bluetooth 4-Station Irrigation Controller NODE-BT-400 — Battery-Powered, Weatherproof

This compact, weatherproof controller removes the need to open valve boxes or run mains power for small landscape and agricultural installations. Designed for outdoor use, the NODE-BT-400 pairs with a multi-language app to let you map controllers by location, configure schedules, and receive battery alerts. Offline setup capability and flexible mounting options make it a practical choice for sites such as gardens, medians, greenhouses, or temporary irrigation projects.

How do I control the NODE-BT-400 from my phone?

Use Hunter’s Bluetooth-enabled app to discover and manage the NODE-BT-400 within roughly 50 feet line-of-sight. The app presents controller location, program settings, and battery status, and lets you adjust schedules in the field or save configurations for later deployment.

• Bluetooth pairing up to about 50' (line-of-sight) for on-site management
• Multi-language interface with controller mapping by location
• Set programs, start times, and run durations from the app
• Receive battery-change reminders through the app

What irrigation scheduling options are available?

The NODE-BT-400 supports three independent programs with up to eight start times each, and run lengths from one second to 12 hours. That range covers quick drip cycles, standard sprinkler runs, and extended soak sessions for germination or agricultural needs.

• Three separate programs for flexible sequencing
• Up to eight start times per program for precise timing
• Run time adjustable from 1 second to 12 hours
• Compatible with soil moisture sensors for automated shutoff

Where can I mount the controller and how durable is it?

Hunter designed the NODE-BT-400 to install in a variety of places — on solenoids, pipe, flat surfaces, or inside valve boxes — with five mounting options to fit project constraints. The enclosure is weather-resistant to withstand outdoor conditions where AC power isn’t practical.

• Five mounting configurations for versatile installation
• Mounts directly to Hunter solenoids or standard plumbing
• Can be placed inside valve boxes or on exposed surfaces
• Rugged, outdoor-rated enclosure for field use

Can the NODE-BT-400 handle compliance or sensor control?

Yes — the controller accepts a soil moisture sensor input, which is useful for water-efficiency programs and LEED-related projects, as well as precision agricultural setups. Sensor integration enables the NODE-BT to skip cycles when moisture is sufficient, saving water and avoiding over-watering.

• Supports soil moisture sensors for automated pause/resume
• Useful for LEED and water-efficiency documentation
• Helps tailor irrigation to crop or landscape needs
• Battery alerts in the app help maintain reliable operation

Who this is for: The Hunter NODE-BT-400 is aimed at landscape contractors, nursery operators, greenhouse managers, municipal crews, and homeowners who need a low-voltage, portable irrigation controller. It especially suits locations without AC power or sites where opening valve boxes is impractical — anyone wanting fast, on-site programming via a smartphone with flexible scheduling and optional sensor-based water savings will find this unit practical and efficient.