Link4 Greenhouse Environmental Controllers

Link4 iGrow Controllers are the latest in greenhouse environmental automation. Control and integrate a variety of equipment in your greenhouse with one easy-to-use system.

• Controllers available for small, mid-size and large commercial growers.
• Manage your heating, cooling, humidity, lighting needs and more from just one controller.
• Precision controls allow you to improve crop quality, reduce equipment usage and lower energy costs.
• Exclusive 2 year manufacturer's warranty and 24/7, 365 days per year support.

iGrow 800 Controllers (111138, 111137).
• Ideal for small or medium greenhouses.
• 8 outputs, 9 stages. Operate up to eight different pieces of greenhouse equipment, including exhaust fans, pad louvers, fan jets, pad pumps, HAF fans, heaters and more.
• These controllers offer advanced control of your equipment at an affordable price. Monitor energy use of each piece of equipment, allowing you to adjust to save money. USB port allows you to easily transfer your data history to your computer.
• Includes temperature probe with 50' of cable.
• 111137 features VC option for controlling vents and curtains, as well as the S module which allows you to monitor your equipment from a computer, smartphone or iPhone app.
• Install iGrow 800 Controllers with our Standard Contactor Panel (111141).

iGrow 800 Integrated Panels (111136, 111135).
• These units are an iGrow 800 Controller and UL-approved contactor panel in one. Pre-wired units eliminate wiring errors in the field.
• Get all the benefits of the iGrow 800 Controllers plus reduced installation costs and easier installation.
• 111135 features VC option for controlling vents and curtains, as well as the S module which allows you to monitor your equipment from a computer, smartphone or iPhone app.

iGrow 1200 Controller (111139).
• Ideal for medium to large greenhouses.
• 12 outputs with manual overrides and independent stage control for flexible equipment control. Two alarm outputs for addedpeace of mind.
• Control capabilities include alarm auto-dialer option/interface, exhausts and HAF fans, fog systems, gas heaters, irrigation systems, pad pumps and louvers, radiant heating, vents and more.
• Includes indoor digital temperature and humidity sensor with 100' cable. Measures -30°F to 150°F and 0% to 95% relative humidity.
• Features 4-line backlit display for programming, SmartCool™ predictive cooling, heat boost dehumidification and NEMA 4 lockable enclosure.
• Compatible with our Sensaphone® systems, sold separately.
• Install your iGrow 1200 Controller with our Standard Contactor Panel (111141). Custom contactor panels are also available to meet your needs.

iGrow 1400 Controller (111140).
• Ideal for medium to large greenhouses.
• 12 outputs with manual overrides, five micro zones, and two alarm outputs for added peace of mind.
• Control capabilities include alarm auto-dialer option/interface, bench or soil heating systems, CO2 injectors, exhausts and HAF fans, fog systems, gas heaters, lighting, irrigation systems, pad pumps and louvers, radiant heating, retractable shade systems, vents and more.
• Includes indoor digital temperature and humidity sensor with 100' cable. Measures -30°F to 150°F and 0% to 95% relative humidity.
• Features 4-line backlit display for programming, SmartCool™ predictive cooling, heat boost dehumidification and NEMA 4 lockable enclosure.
• Compatible with our Sensaphone® systems, sold separately.
• Install your iGrow 1400 Controller with our Standard Contactor Panel (111141). Custom contactor panels are also available to meet your needs.

Link4 Controller Accessories.
• Standard Contactor Panel (111141): To make installation of your iGrow Controller as smooth and trouble-free as possible. UL-approved relay panel perfectly matches your controller to your equipment. Includes two 10 A relays, three 12 A contactors, three 18 A contactors and low voltage transformer. Comes complete with easy-to-read wiring diagram.
• Indoor Digital Temperature and Humidity Sensor (111142): Upgrade for iGrow 800 Controllers. Offers high precision for relative humidity and temperature readings. Housed within a protective shield that safeguards against radiation and reflected heat. Measures -30°F to 150°F and 0% to 95% relative humidity.
• Outdoor Digital Temperature Sensor (111143): Get precise outdoor temperature readings on your iGrow 1200 or 1400 Controller. Measures -30°F to 150°F. Housed within a protective shield that safeguards against radiation and reflected heat. Includes mounting brackets.
• Weather Stations (111144 & 112231): Get the most accurate reading of weather conditions right on your iGrow 800, 1200 or 1400 Controller. Includes high-precision sensors for light (0 to 2,000 W/m2), wind speed (3 to 175 mph) and direction (+/-2%), temperature (-30°F to 150°F) and rain (0.01"). Housed in specially designed enclosures and radiation shields, it is able to detect the most minute changes in weather conditions to full-blown storms