Cloud-Based Environmental Controls

Grow Like a Pro

Backed by over fifteen years of service to growers around the world, Link4 Cloud-Based Environmental Controls are trusted by new and professional growers alike.

Indoors and Out

No matter where you grow, we’ve got an environmental control for you. Check out our latest controls today.

Do It Right the First Time

The most common mistakes can be avoided by involving a Link4 Controls Engineer early in the greenhouse design process.  Our FREE consultation makes the difference.

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 Environmental Controls

Link4 Customers

New Products

Our Product Categories

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
Link4 iGrow 1800
Link4 iPonic 624

Indoor 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
Link4 iDoser TS
iPonic Cloud

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


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
Link4 Digital Integrated Sensor Module
Link4 Gen-13 Panel

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
Link4 iDrive 300
Link4 RO Systems

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.