LEITLINK® 4GF Water Management Controller – Coming Soon
LEITLINK® 4GF with Cloud-Based Communication
DIG’s LEITLINK® 4GF is a solar-powered, cloud-based water management controller designed for flexible and efficient irrigation monitoring. With no hardware or software to install and no office lines to run, LEITLINK® provides streamlined communication, enhanced capability, and full control—right from your browser or the DLINK™ app.
Easy Setup & Management
Creating an account at www.leitlink.com is quick and simple. Once installed, each controller links directly to your site account, appearing on an interactive map where you can assign names, locations, and groups. Manage one or multiple controllers, either from the onboard display or remotely through the site.
Flexible Programming & Conservation
LEITLINK® 4GF uses secure 4G connectivity and MQTT protocol for reliable updates. Users can set programs, adjust flow and ET, review reports, update settings, and even perform manual runs. With weather-based programming and sensor integration, the system helps maximize water conservation while maintaining optimal performance.
Features:
- Advanced Solar-Powered Control – Operates without AC power, batteries, or conventional solar panels using ambient light.
- Cloud-Based Connectivity – 4G MQTTS protocol for secure, real-time communication via DIG® LEITLINK website or DLINK™ app.
- Scalable Design – Supports up to 32 stations, five common wires, two master valves, two fertilizer injectors, and up to six monitoring sensors per zone.
- Built-In GPS – Provides controller visibility and location mapping directly through the online platform or app.
- Flexible Programming – Four programs with 7-day calendar, interval (1–99 days), odd/even days, and up to 8 start times per program. Station runtimes up to 23h 59m in 1-minute increments.
- Weather-Based Scheduling – Adjusts irrigation automatically using location-based weather data and SWAT protocol.
- Customizable Manual Runs – Allows for temporary programs, stored manual runs, and valve testing.
- Sensor Integration – Compatible with flow, temperature, moisture, ET, rain, and freeze sensors (up to six per valve).
- Real-Time Alerts – Sends email/text notifications when sensor thresholds are reached; all alerts can be overridden by the user.
- Reporting & History – Tracks water usage, fertilizer use, run history, and savings; accessible online, via app, or from the controller.
- Patented Sensor Technology – Sensors connect directly through the solenoid actuator circuit, with easy add-on capability.
- Secure Access – Six-character password protection on the controller plus account-based multi-user access with permissions.
- Durable Construction – Heavy-duty, vandal-resistant polycarbonate housing; waterproof and weather-resistant (-10°C to 60°C).
- Lightning Protection – Isolated design protects electronics from ground currents and nearby strikes.
- LEIT USB Key – Rechargeable external power source for display activation and capacitor charging.
- Versatility – Compatible with LEMA 1700S solenoid actuators and adapters for most major valve brands.
- Fertilizer Integration – Two ports for proportional liquid fertilizer or cleaner injection, controllable by programming.
How to Specify
| MODEL | DESCRIPTION |
|---|---|
| LEITLINK 4GF-08 | LEITLINK® 4G, Cloud & Weather Based, Solar Powered Controller |
| LEITLINK 4GF-16 | LEITLINK® 4G, Cloud & Weather Based, Solar Powered Controller |
| LEITLINK 4GF-24 | LEITLINK® 4G, Cloud & Weather Based, Solar Powered Controller |
| LEITLINK 4GF-32 | LEITLINK® 4G, Cloud & Weather Based, Solar Powered Controller |
| LEITLINK FS-08 | LEITLINK® Stand-Alone Controller |
| LEITLINK FS-16 | LEITLINK® Stand-Alone Controller |
| LEITLINK FS-24 | LEITLINK® Stand-Alone Controller |
| LEITLINK FS-32 | LEITLINK® Stand-Alone Controller |
LEITLINK® 4GF Specifications:
- Number of stations: 8, 16, 24, or 32 stations plus two master valves and two fertilizer injectors, without AC power hookup, batteries, or conventional solar panels
- Supports up to six sensors per valve, including flow, temperature, moisture, ET, rain, and freeze sensors
- Power source: ambient light (solar)
- Non-volatile memory retains all programs indefinitely without batteries or AC power
- Built-in GPS for controller mapping and location view via LEITLINK® website or DLINK™ app
- Connectivity: 4G with MQTTS protocol; FCC and EU approved with prepaid SIM service
- Display: 2.8” color screen with five durable sealed navigation buttons
- Programming capacity: four programs with up to 8 start times each (32 total) and station runtimes up to 23 hours 59 minutes
- Scheduling options: 7-day calendar, 1–99 day intervals, odd/even days, or everyday rotation
- Monthly budget adjustment: 5%–200%
- Reports: run history, water use, fertilizer use, and water savings when ET system is active
- Lightning protection: isolates electronics from external ground currents and nearby strikes
- Construction: heavy-duty, vandal-resistant, waterproof polycarbonate housing
- Operating temperature: 14–140°F (–10–60°C)
- LEIT USB Key: rechargeable external power source to activate display and charge capacitors
- Compatible with LEMA 1700S solenoid actuators and adapters for most major valve brands
LEITLINK® 4GF Security:
- On-controller password protection (six characters) to prevent unauthorized access
- Over-the-air security requires controller registration on LEITLINK® website
- Multi-user access with customizable permission levels
LEITLINK® 4GF Programming:
- Custom programming with four programs and up to 32 daily start times
- Station durations adjustable from 1 minute to 23 hours 59 minutes
- Weather-based programming via cloud connection; adjusts based on location-specific ET data
- Manual run options for temporary programs, stored manual programs, and valve testing
- Supports weekly and monthly deactivations, seasonal budgeting, and rain delays
- Diagnostics include open circuit and short circuit detection
LEITLINK® 4GF System Components:
- LEITLINK® 4GF controller (8, 16, 24, or 32 stations)
- LEMA 1700S solenoid actuator with adapters for most valve brands
- LEIT USB Key for initialization and capacitor charging
- Optional: inline flow sensors, temperature sensors, moisture sensors, fertilizer injectors, and stainless steel enclosure
