Rhino 1EC Fan Controller – Analogue Thermostatic Speed Controller for EC Extraction Fans

The Rhino 1EC Fan Controller is an affordable, straightforward solution for thermostatic control of a single EC extraction fan. Designed specifically to extract stale air from the grow environment, it features a simple three-dial analogue interface that is quick to set up and easy to use — ready to run in three steps: connect the controller to the fan, position the temperature probe, and dial in your target temperature.

Compatible with the full range of Rhino EC Ultra fans, the 1EC offers automatic temperature-responsive speed adjustment alongside manual minimum and maximum speed settings — helping to balance airflow, reduce running costs, and maintain a stable grow environment.

Key Features

• Three-dial analogue interface — simple to configure and operate
• Dial 1: Target temperature control — adjustable from 20°C to 30°C
• Dial 2: Maximum fan speed — set from 50–100% to reduce noise and running costs
• Dial 3: Minimum fan speed — set from 0–100% to balance CO₂ and oxygen levels
• Thermostatically controlled — automatically adjusts fan speed in response to temperature changes
• Plugs directly into any Rhino EC Ultra fan — no additional power supply required
• Protects plants from sudden temperature fluctuations
• Suitable for any grow room environment, including tropical temperature ranges

Specifications

• Weight: 0.5kg
• Dimensions: 11 x 11 x 6cm
• Interface: Analogue (3 dials)
• Temperature range: 20°C – 30°C
• Max speed range: 50–100%
• Min speed range: 0–100%
• Compatible with: Rhino EC Ultra fans (full range)
• Brand: Rhino