I can’t set up my device: what could the reason be?

  1. Check whether your smartphone is connected to the Internet.
  2. Check whether the WiFi network is working properly and at a 2.4 GHz frequency.
  3. Check whether the entered password is correct. If not, reset the device and repeat the setup procedure.
  4. Check that there is no firewall (protection) on your network preventing the connection of your device. If so, you need to add the Mac Address to the list of devices that are allowed to connect to your network. This procedure depends on your internet service provider and on the type of router you are using. Please check how to retrieve your device’s Mac Address in the appropriate section.
  5. On your router, check whether port 1884 is open. Usually you can do this from the port mapping section; check whether it is possible to enter Telnet Server.
  6. If the problem persists, please contact our technical support team ( and provide them with the unique code on the back of the device, your telephone number and ideal time you would like to be contacted.

I have to change the credentials of the WiFi network to which the device is connected: what do I need to do?

In this case, follow the procedure in the dedicated handbook section. In short, you have to reset the device and start the setup again.

How can I retrieve my device’s Mac Address?

  1. If the device has already been set up and connected, you just need to connect to the Web app ( with your credentials. Once logged in, you will find the Mac Address in the first column of the “Device” page (Conn ID).
  2. If the device has not been set up yet, you need to connect it to the power supply. When starting for the first time (or once reset), the device will generate a network called SmartSensor, followed by the Mac Address of the WiFi module.
    For example: SmartSensor-44179306BC91 network, where 44179306BC91 is the MAC Address of the WiFi module.

The device is not starting: what could the cause be?

  1. Check whether the plug is properly inserted into the socket.
  2. Check whether the micro USB cable is properly inserted into the device.
  3. Try to use another power adapter and/or cable. If the adapter is faulty, please contact the after-sales service for replacement.
  4. If the problem persists, please contact our technical support team ( and provide them with the unique code on the back of the device.

Operation mode

Why do I sometimes find my device turned off?

Fybra Home has a shutdown threshold of 500 ppm below which the device switches the visual signal off. This mode is designed to reduce electricity consumption by deactivating the visual signal when no one is around; data monitoring is continuous.

Which comfort temperatures should I set?

The best comfort temperatures are those set as the set point in your heating and cooling system, if present. Fybra Home cannot increase (in winter) or decrease (in summer) the temperature directly. However, based on its algorithm, it will calculate the window opening time in order to guarantee that the temperature is the same as the one set on your air conditioning system and that the air quality is optimal, while remaining within the comfort range.

Why is it important to enter the location of the device?

Fybra Home uses external climate data in its algorithm. To guarantee its effectiveness, it is therefore necessary to enter the actual city in which the device is installed.

Why is my device always red? What are the reasons?

  1. If you do not open your windows very often, when using Fybra Home for the first time you might get the impression that the openings are rather frequent. Do not worry, it is just a matter of habit.
  2. If window openings are too long or ineffective, there might be a constant polluting source (VOC) for which the air change is not enough. In this case, we advise you to try different device positions in order to define the polluted area and identify the source.
  3. If window openings are too long or ineffective, check whether the device is working properly. Try placing it next to an open window or outside and check whether you obtain a CO2 (<600) and VOC (<100) decrease.
  4. If you still have any doubts, please contact our technical support team (

Is the device immediately operative?

The sensor needs a maximum of two weeks to adjust, both in terms of measurement adjustment, through the self-calibration algorithm, and in terms of dynamic algorithm operation.