Fibaro FIBARO Double Smart Module/Z-Wave Plus Two Channel Dry Contact Smart Switch for Two Devices, FGS-224, Black

With the Fibaro Smart Module, you can integrate existing electrical installations (e.g. lighting, airing systems) into a Z-Wave network. Thus, the connected devices can still be controlled with the existing wall switch, but – thanks to Z-Wave – also via remote control, smartphone, or sensor-controlled automation. The compact radio module is placed in a wall box right behind the normal switch. The switch is no longer directly connected to the load but acts as an input device for the FIBARO insert that is controlling the load. The switch only sends a control signal to the insert which controls the load then again. The solution works with all switch design. You can use a momentary or a toggle switch. It’s recommended to use wall boxes with 65mm depth. But smaller boxes with only 45mm depth can be used also if there is enough space behind the switch. The available space depends on the size of the traditional switch, the dimensions of the wall box, and the amount of additional cabling placed in this box.