Control motorised air damper with different temperatures

Hi all,

My vera lite is on its way and the first thing I’m planning to do is automate my air transfer unit.

At the moment it’s just pulling air from the living room and distributing it into the bedrooms for winter to warm the rooms.

Coming into summer in Oz I want to pull air from another inlet when the air outside is cooler then the inside temperature.

With the fibario universal sensor is there a max distance for the sensor cables as the areas that I’m looking to take the temperature readings from is 6metres each way.

Also is there an AC motor controller that can be recommended that I can slow down the motor during the evening so its not like a tornado in the rooms?

Cheers,
Brett