Z-Wave Fibaro Universal Sensor Vs Alarm Panel?


So, I would like to integrate my existing PIR sensors and wired door contact sensors into Smartthings.

I have come across the Z-Wave Fibaro Universal Sensor which seems designed for the task.

However, whilst my code skills are strong, my electrical/electronic ones are not!

So, I was wondering if someone could give me some guidance on how this would wire in?

The panel seems to be using a 4K7, 2K2 line tamper wiring mode, which seems common in the UK.

In the panel I can see that the PIR sensors have a 12V, GND, EOL and COM connection to them, would I just essentially connect a 12V and GND from the panel to the sensor, and then just wire the input and output 1 between the EOL from the sensor and the panel? Or is it more complicated than that?

Similarly the door sensors seem to just be wired to the EOL and COM, with no 12V or GND, so would those again just wire into the sensor on the input, and then take the correct output on the sensor and wire it to the panel?

Help appreciated!



Hi sorry I might be able to help you im an electrician
And have a fair understanding of alarms but I’m new to smartthings I’m interested in what your doing are you trying to get your wired alarm system to work with smartthings? If so we might be able to help each other. I have a wired alarm and if like to be able to connect some how to smartthings.

Hi Frazer,

Essentially I want o be able to monitor the state of the PIR and Door sensors in smartthings so I can use them to trigger automation actions, whilst still mainlining my existing alarm system.

I had previously done this using with home assistant the analogue input on an Arduino, I used a voltage divider across the EOL and COM connections on each circuit and just monitored it for the voltage change that happened. I then had that hooked up to a Raspberry Pi running Node Red with the Arduino module, that the reported all status changes to an MQTT server that homeassistant monitored. It all worked pretty well, but the system died a week or so ago and I can’t quite bring myself to rebuild it all, and there is no native MQTT functionality in Smartthings so I’d need to run yet another external node server to allow the two to talk to each other, which is something I’m keen to avoid.

Robin - Thanks for you reply, very helpful. In which case I think it might be a case of using my existing Arduino and voltage divider setup, and using the SmartThings Anything code on it with a Ethernet shield. Will order a shield today and see how I get on, shouldn’t that that hard to set the above/below voltage for the on/off states.



Wow @gazzer82 I don’t think I can be of any assistance to you your knowledge is much greater than mine if anything I would like you to keep me updated on what you manage to do as I like the sound of what your doing. Only thing is I’d like to be able to remotely set my alarm and also be notified if the alarm is triggered. Lastly what alarm panel are you using or will this work on any conventional panel?
Thanks In advance

I am trying to integrate some Fibaro UBS into my alarm panel simply to trigger when movement is detected or a door is opened. However this is all relatively new to me so i am seeking some assistance with the wiring.

I would like to fit the UBS in the alarm panel as they are out of the way and i am not bothered about temperature or tamper readings.

In the alarm panel (see photo) i have six sets of wires that come from the six PIR/door sensors (pairs of blue and white wires) i am assuming the red (12v) goes to the 12V connection in the panel and the blue (gnd) goes to the 0V in the panel, could someone advise on the remainder of the wiring please. I have tried various options but to no avail. I assume each set of blue/white wires from panel need to connection to the yellow/green inputs and the output terminals on the UBS.

Any assistance would be much appreciated

hi siddys how did you get on with the unversal sensor and the alarm, i just connected my new alarm box up and managed to add one universal sensor to my door and window sensors.

Have you had a look at how you have wired up your sensors, i assume you are not using all 6 wires in the cable for the sensors are you in your home or is this business with tampers and resistors etc?