Rhino 2EC + RH Fan Controller

The Rhino 2EC + RH Fan Controller is an advanced environmental control system designed to automatically manage airflow, temperature, and humidity in indoor growing spaces. By intelligently controlling EC extractor fans, it helps maintain a stable climate inside your grow tent or grow room — a critical factor for healthy plant development, efficient nutrient uptake, and strong yields in hydroponics, coco, or soil setups.

Instead of constantly adjusting fan speeds manually, the Rhino 2EC + RH Controller monitors environmental changes and automatically balances airflow. This ensures excess heat and humidity are removed quickly while maintaining stable negative pressure, preventing grow tents from ballooning or collapsing. The result is a more consistent environment that supports vigorous vegetative growth, improved plant health, and better bud density during the flowering and bloom stage.

Key Benefits

• Automatic control of temperature and humidity in grow tents and grow rooms
• Intelligent EC fan speed adjustment for stable indoor growing conditions
• Maintains negative pressure to protect grow tents and optimise airflow
• Day and night environmental settings reduce plant stress during light cycles
• Improves plant health by stabilising climate conditions
• Energy-efficient operation reduces running costs and equipment wear
• Compatible with EC extractor fans such as Rhino EC Ultra Fans

How It Solves Grow Problems

Environmental instability is one of the biggest challenges in hydroponics and indoor growing. Sudden temperature spikes, high humidity during flowering, or poor airflow can slow vegetative growth, reduce nutrient uptake, and lead to airy buds or mould issues.

The Rhino 2EC + RH Controller continuously monitors the environment and automatically adjusts fan speed to correct changes before they affect plant health. By maintaining balanced airflow and stable humidity, it helps prevent heat stress, condensation, and humidity spikes that can damage crops during the bloom stage. Stable conditions also support stronger root development and more consistent yields across hydroponic systems, coco, or soil grows.

How to Use

1. Mount the controller outside your grow tent or grow room for easy access.

2. Connect your EC extractor and intake fans to the controller’s fan ports.

3. Place the temperature and humidity sensor inside the grow space at canopy height.

4. Set your desired temperature and humidity levels using the digital interface.

5. Configure separate day and night settings to match your lighting cycle.

6. The controller will automatically adjust fan speed to maintain stable conditions and balanced airflow.