Brand: K-Rain SKU: BLUE-1
Product Overview
The K-Rain BLUE-1 is a one-station, battery-powered irrigation controller for valve boxes and remote landscape areas where installing AC power and controller wiring is impractical. Its Bluetooth connection allows programming and manual operation through the K-Rain BLUE app from a compatible smartphone or tablet, so routine schedule changes can be made without opening or working inside a wet or muddy valve box.
The IP68-rated enclosure is designed for installation directly in the valve box and is molded from UV-resistant, high-impact material. The controller supports one irrigation valve equipped with a compatible 9V DC latching solenoid; a conventional 24 VAC solenoid will not operate from this battery-powered controller. K-Rain specifies direct Bluetooth manual control from up to approximately 35 feet under suitable conditions, plus app features for mapping, passcode security, water-budget adjustment, battery status, and program backup.
BLUE-1 is rain-sensor and rain/freeze-sensor ready when wired according to the current instructions. It requires 9-volt battery power, and the battery is not covered by the controller warranty. Confirm solenoid type, sensor wiring, app compatibility, and valve-box space before installation.
Key Features
- Controls one irrigation station
- Battery powered for locations without AC power
- Bluetooth programming through the K-Rain BLUE app
- IP68 waterproof valve-box enclosure
- Approximate 35-foot direct Bluetooth operating range
- Compatible with 9V DC latching solenoids only
- Rain and rain/freeze sensor ready
- Water-budget, mapping, backup, and passcode features
Common Uses
- Remote single-valve irrigation zones
- Traffic medians, roundabouts, and isolated planting beds
- Adding one zone where new control wiring cannot be installed
- Greenhouse, nursery, and temporary landscape watering
Compatibility and Installation Notes
Use only with a compatible 9V DC latching solenoid, such as the type specified in the current K-Rain BLUE instructions. Install the battery, valve wiring, and normally closed sensor connection as directed. After installation, run the latching-solenoid startup procedure so any coil supplied in the latched-open position is properly closed before normal operation.
Frequently Asked Questions
Can BLUE-1 operate a standard 24 VAC irrigation valve?
Not with its standard 24 VAC coil. The valve must use a compatible 9V DC latching solenoid.
Does the controller need Wi-Fi at the valve box?
No. Direct field communication uses Bluetooth. Some account, backup, or map functions may require internet access on the phone or tablet.
Can it be installed inside the valve box?
Yes. The enclosure is IP68 rated for that application when assembled and sealed according to the instructions.
Why Buy the K-Rain BLUE-1 from Big Frog Supply?
This page identifies the exact one-station model and its required latching-solenoid technology, helping prevent an incompatible 24 VAC installation. Big Frog Supply also carries K-Rain 9V latching solenoids, valves, sensors, and waterproof irrigation connections for completing the remote-zone installation.
