Fibaro Universal Binary Sensor

Just like the fibaro RGBW controller, it is not very clear with this module that the 2 inputs have a direct relationship with the 2 outputs. The outputs can therefore not be controlled from the central controller. Function is also fine, in use for motion detectors, doorbell and multiple temperature sensors. Very occasionally (1× per year) had a crash; power cycle and good again.

If you look at the manual or product info on the Fibaro website, you won't really learn what this sensor does exactly. Well, it's actually quite simple: you connect the sensor to low voltage (max 30V) and you can connect up to 2 voltage-free contacts to the inputs. These inputs are then mirrored to the outputs and you can read them with your controller. In concrete terms: you have an existing alarm system whose outputs are provided as potential-free contacts. The "alarm going off" can be such a signal. You can then connect this contact to the sensor as an input. The sensor passes this signal (so 1 or 0) to the output (mirror). This way your controller (Fibaro, but also compatible with Homey) knows whether your alarm is going off. Important: you cannot send signals to the sensor, only read them. To connect the sensor correctly, you need to know something about electronics. I had ordered 2 sensors of which 1 did not work (known problem). Coolblue solved this very quickly! Since the sensor works according to the z-wave protocol, the range is not as far as z-wave plus.