Downloads & Resources
Download Link4 brochures and product resources all from one place.
Product Overviews
Technical Brochures
Specification Sheets
Product Overviews
Pearl Controller | General Overview
Pearl Irrigation | General Overview
Pearl Standalone | General Overview
Pearl Protect | General Overview
Analog Light Controller | General Overview
16 Output Pearl System | General Overview
6-Contactor Package | General Overview
Retrofit Package | General Overview
Link4 Cloud | General Overview
Smart Fan Controller
HydroRoot 16
Technical Brochures
Pearl Controller | Technical Specs
Pearl Standalone | Technical Specs
Pearl Protect | Technical Specs
Analog Light Controller | Technical Specs
Pearl Digital Controller | Technical Specs
Weather Station | Technical Specs
ADISM 2.0 | Technical Specs
DTH Sensor | Technical Specs
3-Contactor Panel | Technical Specs
8/4 Relay Output | Technical Specs
5 Input Module | Technical Specs
LBus & Comm Keys | Technical Specs
HydroRoot 16 | Technical Specs
Pearl Prime | Residential | Specs
Pearl Prime | Commercial | Specs
Specification Sheets
Environment Monitoring Sensors
Water & Nutrient Sensors
Light Monitoring Sensors
Smart Airflow Controllers
Motor Controllers
Weather Station
DTH Sensor
Temperature Probe
Ultrasonic Flow Meter
Ultrasonic Level Sensor
Dissolved Oxygen Sensor
Quantum PAR Light Sensor
Full-Spectrum PAR Light Sensor
New Quantum (PAR) Light Sensor 2025
Fan Controller
iOptimizer VFD Controller
