Primair product details:

The Primair is an advanced fan speed controller that is capable of adjusting the speed of both intake and outtake fans.

The Primair has three dials on the front which allow you to set the temperature you wish to maintain and the idle speeds of both the intake and main extraction fan. Once you've wired up the primair and placed the external probe in your growing area the unit will regulate the fan speeds so if it gets too hot it will increase the speed and if it gets to cold it will drop the fan towards the idle speed you set on the dials on the unit.

The Primair is quite simple to wire up and comes with full instructions.

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