Link4 Corporation

Introducing the 2-in-1 Sensor for Temperature & Humidity, designed to seamlessly integrate with series 1000 controllers. This advanced sensor provides precise temperature, humidity, CO2, and solar light measurements, ensuring comprehensive environmental monitoring.

The ADISM sensor gives you monitoring control with a differential pressure to provide accurate readings for temperature, humidity, CO2, and solar light. Its intuitive programming allows for easy setup and even easier use on a day-to-day basis. Compatible with Link4’s iGrow 1800 Series, the ADISM is a powerful companion tool to monitor and control your greenhouse.

Delivers precise measurements for temperature, humidity, CO2, and solar light. Its user-friendly programming ensures effortless setup and daily operation.

Made from durable materials, this wind speed and wind direction system is robust enough to endure hurricane-force winds, yet sensitive enough to detect even the lightest breeze. It is hand-balanced for optimal stability and accuracy, and sealed with stainless steel ball bearings for a long lifespan.

Use it to detect a positive pressure environment. Cost-Effective Solution: The sensor provides a budget-friendly option for dependable pressure monitoring, ensuring both value and long-term performance. Enhances system performance by offering real-time data on pressure changes, allowing for timely adjustments and ultimately improving operational outcomes.

Compact designed sensor (2.5 x 2.5 mm, 0.9 mm), versatile voltage (2.4V to 5.5V), and communication (up to 1 MHz).This sensor is ideal for various applications that require precise temperature and humidity monitoring. Its compact design, wide voltage range, and high-speed communication capabilities make it an efficient and dependable choice for diverse sensing needs.

This sensor offers combined temperature and humidity measurements, providing comprehensive environmental data. It is designed for enhanced durability and reliability, ensuring precise climate data.
(InT, InHum, w/ radiation shield - light cover)

Continuously monitors the electrical conductivity of your solution, ensuring you're promptly alerted to any changes or potential issues. With a reliable performance and a one year limited warranty, you really can not afford not to have the EC Sensor as part of your grow operation. EC sensor monitors electrical conductivity. CS150TC. K=1 EC Sensor, Graphite, 12mm, TC=10k NTC, K=1.0, TL  (EC Black with Temperature sensor)

The system is fully programmable, efficiently controlling heaters, fans, vents, and other equipment with its 8-output system (expandable to 32), accommodating custom setups. It can be expanded to 144 outputs and 64 zones, catering to small to larger project requirements. 

W/VC & S OPTIONS (8 OUTPUTS, 9 STAGES), USB INTERFACE

Link4's LinkConn software streamlines greenhouse control with its user-friendly interface. Whether you have one greenhouse or a hundred, LinkConn seamlessly manages them all from a single location. Software required for 1800 & Cloud Access to manage greenhouses.

The soil moisture sensor is perfect for measuring bottom heat, monitoring mixing valve systems, soil temperature, and various other applications. With dimensions of 2.4 inches x 0.8 inches x 0.1 inch, it features a 6 to 20-foot extendable cable, which can be lengthened up to 50 feet. Operating at 80 MHz, this sensor functions effectively in a temperature range of 33 to 175°F (0.5 to 80°C).

The rain sensor is versatile, compatible with 10-30 VDC or 12-26 VAC, and equipped with surge and reverse polarity protection. It has a current consumption ranging from 15 mA in standby mode to 55 mA with the heater on. The sensor offers relay contacts, ±36% accuracy, does not support RS232, and functions in temperatures ranging from -40 to +60 °C. 

The device offers six distinct modes of operation: Tipping bucket, Skylight rain sensor, Wiper control, Drop detection, Condensation/Frost Sensing, or Irrigation control sensor.

Link4's Par Light Sensor is calibrated for sunlight and is used to measure PPFD in greenhouse grow environments and PARs in aquaponics setups. It is rugged, self-powered, and self-cleaning, ensuring reliable monitoring of plant light.

The system comprises a controller module, an 8-relay output module, three contactors, a transformer, a breaker, and a power supply, ensuring versatile and efficient operations. It is UL-listed and features a NEMA 4 Panel for enhanced safety.

The compact system measures temperature and humidity, controls up to eight devices in a single zone, provides cloud connectivity for data collection, and alarms, and boasts quick and easy installation.

Effectively monitor your pH levels, continuously analyzing for any changes that could impact your yield. The durable body is guaranteed to last for up to a year with a low-maintenance sealed gel design to prevent contamination.

PEARL Controllers can utilize Temperature Probes along with indoor and outdoor Temperature Sensors. These durable, compact sensors can be placed in various locations throughout your greenhouse.

Detects the solar visual spectrum to enable precise control of curtains, irrigation, lighting, and CO2 levels.

Controlling the temperature through bottom heat.Link4 provides versatile stainless steel Temperature Probes specifically designed for compatibility with your iGrow 1400/1800 Series controllers. These sensors are suitable for use in the substrate to control benches.

The air temperature probe sensor is utilized to measure ambient temperature. The radiation housing enables you to obtain ambient readings instead of radiant ones.

Link4's advanced Weather Station is specifically tailored for your iGrow controllers, ensuring precise weather data. This leads to improved crop yields, enhanced crop protection, and reduced energy expenditure.

Detects Temp, Humidity, Light, Wind speed/direction, Rain/Snow. Comes with 50 ft 12 conductor and 50 ft 4 conductor cable.

Able to detect the most minute changes in weather conditions, Link4’s Weather Station possesses the perfect combination of sensitivity and durability. Encased in specially designed enclosures and radiation shields, the Link4 Weather Station is protected against solar radiation and reflected heat, ensuring the most accurate weather readings for your iGrow controllers.