Link4 Greenhouse Controls

Link4 Greenhouse Controls Link4 Corporation was founded in 2004 to develop sophisticated but easy to use controller products for the greenhouse industry. The result?

Link4 was founded in Southern California, and created with customer service in mind from the very beginning. The birth of the company was inspired by a discussion about the current state of the greenhouse industry, and its need for environment controllers that are easy to install, program and maintain, yet rich in features. The result was our introduction of products that achieve maximum plant gro

wth while minimizing energy and water consumption. Staffed by designers and engineers, Link4’s vision is to offer the best environmental controls on the market today. This vision is made possible by combining today’s advanced technology with economical production techniques. An intelligent controller system you can choose with confidence, that will help you grow your product, your profits, and your business.

01/01/2026

New year. New goals. More growth. Cheers to a successful 2026. 🥂

#2026

The Link4 team wishes you all a very Merry Christmas.We'll be closed December 24-25, 2025.Have a joyful Christmas, every...
12/18/2025

The Link4 team wishes you all a very Merry Christmas.

We'll be closed December 24-25, 2025.

Have a joyful Christmas, everyone!

Integrate your outdated system with Link4 Modbus DIN rail-mounted modules in a single snap. Link in bio.
11/21/2025

Integrate your outdated system with Link4 Modbus DIN rail-mounted modules in a single snap. Link in bio.

⚠️ STOP wasting time and water! ⚠️ Growers across nurseries, greenhouses, and open fields are switching to automated irr...
11/17/2025

⚠️ STOP wasting time and water! ⚠️

Growers across nurseries, greenhouses, and open fields are switching to automated irrigation systems.

These systems help in cutting labour costs by 21%, slashing watering time by 50%, and even reducing water usage by 15% up to 40%!

All by smart automation.

That's where are HydroRoot comes in. Our smart, precise irrigation controller saves you time, money, and resources while giving your crops exactly what they need.

The question is... will you be the next to benefit from smarter irrigation?

Get your HydroRoot and see the difference for yourself! Link in bio.

Still using an iGrow controller? It might be time to meet the future of growing - the Pearl.We've worked with growers ac...
11/12/2025

Still using an iGrow controller? It might be time to meet the future of growing - the Pearl.

We've worked with growers across North America for years - from small greenhouses to large scale operations - and we've seen how upgrading to Pearl changes everything.

Here's a short teaser of what you'll gain when you make the switch to the pearl:
Hyper-precision crop steering
True modular scalability
Next-gen cloud and remote control

Pearl isn't just the next step after iGrow—it's a leap toward smarter, calmer, more connected growing.

What would you do with the extra time if your greenhouse practically ran itself?

Link in bio to check out the Pearl controller.

Dutch Mill Nursery wanted to save water without losing control.Now, one Pearl controller manages every zone — seamlessly...
11/04/2025

Dutch Mill Nursery wanted to save water without losing control.
Now, one Pearl controller manages every zone — seamlessly.

Based in Florida, Dutch Mill grows flowers for Disney World and needed smarter irrigation to qualify for a state grant.

Link4 helped them design a system using one Pearl “brain” to control multiple greenhouses and outdoor ranges via satellite output/input panels — combining scheduled irrigation, soil moisture sensors, and VPD control.

🪴 The result: less water waste, more precision, and easier management.

Reach out to us to learn how we can help you with our custom solutions.

Address

175 E. Freedom Avenue
Fullerton, CA
92801

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+17146940343

Website

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