SMSCOM – Twin Controller Mk2

The SMSCOM Twin Controller Mk2 delivers precise, automatic temperature control for grow rooms through advanced electronic climate management. Unlike basic fan controllers that jump from idle to full speed once temperatures rise, the Twin Controller continuously calculates and applies the exact fan speed needed to maintain your chosen temperature.

As a result, the controller adjusts airflow smoothly rather than relying on abrupt on/off changes. Consequently, it creates a far more stable growing environment. This stability leads to healthier plants, reduced stress, and more consistent conditions throughout both the day and night cycles.

In addition, the Twin Controller Mk2 includes a 5-metre NTC temperature sensor, which allows flexible and accurate probe placement within the grow space. When the grow lights switch off, the integrated humidity control program automatically activates. At this point, the controller briefly increases fan speed once per hour to remove excess moisture and reduce the risk of mould. Furthermore, growers can enable or disable this secondary program at any time, ensuring full control over environmental conditions at every stage of the grow cycle.

Key Benefits:

• Precise electronic temperature control

• Automatically calculates optimal fan speed

• Smooth airflow adjustments for stable conditions

• Adjustable minimum and maximum fan speeds

• Built-in lights-off humidity reduction program

• Improves plant health by reducing temperature fluctuations

• Easy to install and operate

• Available in multiple amp ratings

Instructions for Use:

• Connect your extraction and/or intake fans

• Position the temperature probe inside the grow space

• Set your desired temperature

• Adjust minimum and maximum fan speeds

• Activate or deactivate the humidity program as required

• The controller will automatically regulate fan speed