
Pearl Digital Controller Module
The Optimal Solution for a Smart, Climate-Controlled Greenhouse
Revolutionize your operations with Link4’s 4th-generation cloud-connected system, tailored for commercial growers to effortlessly enhance yield and crop quality.
Key Benefits:
- Unmatched Scalability: Expand with additional modules to handle up to 128 inputs and outputs.
- Seamless Connectivity: Ethernet access for uninterrupted cloud integration.
- Robust Design: Surge-protected power for uninterrupted operation.
- Effortless Maintenance: Quick-change communication keys
- User-Friendly: Bright sunlight-readable display & USB for backup
$799.00
Shipping calculcated at Checkout | *17% surcharge calculated on all hard goods.

Check out how to level up your greenhouse automation!
- Can expand up to 128 Inputs and outputs (customized quote needed)
- Ethernet and LBus for cloud integration
- Bright, sunlight-readable LCD screen
- Isolated power and surge protection
- Modbus RTU ports
1. Can I customize the Pearl?
2. Can it integrate with existing systems?
3. What does cloud connectivity provide?
4. What should I do if I want more information?
5. How many devices can be connected to the Pearl Digital Controller?
You can connect multiple devices depending on the number of I/O modules added. The system is modular, so expansion is simple as your facility grows.
6. Does the system log all changes and backups automatically for troubleshooting?
The Pearl Controller automatically logs changes and stores backups, making it easier to troubleshoot and review past activity.
7. What is the difference between Pearl Analog and Pearl Digital Controller module?
The digital module is designed for on/off device control like fans, pumps, or lights, while the analog module handles variable signals (0–10V) from sensors or dimmable equipment.
Link4 Cloud for Web, Android, and iOS
The Link4 Cloud is the latest innovation to Link4’s Cloud technology, supporting the new Pearl controller.
Monitor and set your controllers from anywhere. Create reports, view graphs, and collect data. Log notes using the Grow Journal. Do all of this and more using the intuitive user interface.


















