Cloud-Based Environmental Controls
What We Do: The Link4 Story of Quality and Commitment
What Sets Us Apart From the Competition
Cloud-Based Control
Access your grow data, receive alerts, and make changes all via the Web on any mobile phone or desktop device. LEARN MORE
Environmental Controls
No matter what you grow, we have the right controls for you – backed by over a decade of experience. LEARN MORE
Customer Support
Outstanding consultation and customer support that doesn’t end after the sale. Contact us today to talk about your next project. LEARN MORE
These Pros Grow with Link4 Greenhouse Controls

Our Product Categories
Outdoor / Greenhouse Controls
- Advanced controllers at a variety of price points
- Feel safe with control over your greenhouse operations
- From 8 up to 144 intelligently controlled outputs
- Remote access, networking & internet connectivity features
- Increased profit with data tracking software
- Reduce costs and save energy
Indoor / iPonic Controls
- DISM Sensors Included
- Easily transfer data to your PC for analysis
- Everything you need for optimal zone control
- Use your smartphone to monitor and change settings
- Get peace of mind with alerts for temperature, humidity, CO2, and more…
Irrigation and Fertigation Controls
- Built-in safety monitoring for crop protection
- Select and customize your own alarms and triggers
- Full control over dosing and nutrient system
- Integrated irrigation scheduling and nutrient dosing
- Improve costs, save time, and completely control your nutrient solutions
Cloud Access & LinkConn
- Smart layout saves time and makes optimization of growing conditions easy
- Simple reviews of historical data
- Increase growing efficiency
- Successful in a variety of different zones
Sensors
Link4 offers a variety of sensors to meet your specific project needs.
- Advanced Digital Integrated Sensor Module
- Digital Temp and Humidity Sensor
- Digital Integrated Sensor Module
- Weather Station
- Anemometer
- Solar Light Sensor
- Temperature Probes
- EC/Temp Sensor
- pH Sensor (Flat Tip)
- Room Pressure Sensor
- Quantum (Par) Light Sensor
Lighting Panels
- Custom grow light controls panels for HPS and LED
- Cost-effective
- 100+ light jobs for any size panel
- Easy user interface using your Link4 iGrow Controller
- Customizable to ensure your lighting control needs are met
iDrive Motor Controllers
- A simple and elegant solution for controlling your vents, curtains, and more
- Compact design to save space in your greenhouse
- Easy to install and wire
- Works with any common greenhouse controller
- UL and cUL approved
Reverse Osmosis Systems (RO)
Link4 Corporation is partnering with AXEON, a world leader with 30 years of experience in engineering and manufacturing innovative membrane and filtration systems, to bring its customers the best reverse osmosis (RO) solutions for their growing projects. The AXEON X- Series of Membrane Systems utilizes reverse osmosis technology to produce high purity water by reducing contaminants such as dissolved minerals, particulates, and organic impurities. Link4 and AXEON combine their skills and technology to be able to provide customers with complete water treatment solutions that offer reliable operation and exceptional performance. These solutions are skid-mounted, pre-plumbed, and pre-wired for quick installation and start-up. Allow our team to assist you in designing your next water treatment solution.