Do I need additional sensors for each room I install Alea? Brad September 25, 2018 17:49 Updated No. Each Alea vent is self sufficient and incorporates all the sensors and wireless connectivity that’s needed. Related articles Do I need a smart thermostat to work with Alea? Can I use a hub other than the Alea smart hub? Is Alea safe...? (Does it monitor and adjust for ducts' air static pressure?) Can I install Alea myself? How is each Alea device powered? Comments 0 comments Please sign in to leave a comment.