With this fan-controller it is possible to control a ventilator manually for climate your room.
Furthermore it is possible to choose the minimum and maximum number of revolution by preselection.
Included in the delivery is a temperature sensor, that releases an impulse too, when the chosen temperature will be under- or overstepped.

So you can always hold the optimum temperature and humidity for the plant without any extra components.

It could look like this:

At plugin 1 supply air is connected, at plugin 2 the outlet air.
With the temperature regulation the outlet air will power when the temperature of 30°C oversteps.
The humidity is measured by a external humidistat and controls the supply air with this values.
When the measurements are in the optimal state the fans will be controlled automaticly till everythings gone back to the normal state.
This is the easiest way! And no need for a manual controlling is needed.
Constant values in the room are very important for the plants. That''s why the controller will be very handy for you!
Less effort for more gains.

The temperature sensor has a 2m long cable, that you can place it right in the middle

Top capacity for each plugin: 400 VA
Safety: 2 x 5 A