The AWC (wall-mount controller) enables you to remotely control up to 4 heaters Apero digital and Allegro II models- to a maximum of 4000 W, while maintaining the advantages of each heater's integrated thermostat, it's ideal for those with large open rooms seeking stable comfort throughout. In open rooms in which heating needs are different (i.e. in basements), each heater operates independently in its environment, but works in tandem with the wall-mount controller, to offer an established consistent comfort level, a solution for attaining consistent comfort throughout the entire room The Wall-mount controller offers you 5 different settings and a daily temperature lowering schedule, in order to further optimize your energy economies, in fact, among other things, it offers you comfort, economy and frost protection settings, all that's left to do is program and economize LCD screen Includes the precision of an integrated thermostat Easily accessible