For classrooms, we recommend using a local control panel (Airlinq Viva for single units and Airlinq Orbit for multiples) with an integrated CO₂ sensor installed within the master unit. 

For rooms of intermittent occupancy, we recommend using a local control panel (Airlinq Viva for single units and Airlinq Orbit for multiples) with an integrated or wall mounted motion sensor installed within the master unit. 

Units can be installed in a master/slave relationship where you have multiple units in one room. In this instance, the master unit would be connected to the control panel and have any sensor connected to or installed within it. It would instruct the slave accordingly. Further details are available on pages 80-83 of the Technical Data Brochure.