Pretty sure that lower round module with the red light is a wireless receiver for a Salus battery powered timer/thermostat, you can place them anywhere and/or move them room to room, about the same size as a regular wall thermostat.
Pretty sure that lower round module with the red light is a wireless receiver for a Salus battery powered timer/thermostat, you can place them anywhere and/or move them room to room, about the same size as a regular wall thermostat.