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Your seventh sense for fires:
Fire gas detection with spexor.


Fires produce various gases that mix with the surrounding air. Thanks to unique sensor technology, spexor detects drastic changes in the gas atmosphere that can be indicators of a fire. Properly installed, spexor can thus contribute to the early detection of a fire.

Smaller than a match head.
The gas sensor of spexor.


The gas sensor in spexor is a small miracle of sensor technology from Bosch. It combines high-precision sensors with long-range gas detection. Thanks to its comprehensive measuring range, it is able to detect hazardous gases at just a few ppm (parts per million) – and thus detect a potential fire hazard. If the sensor detects a sudden drastic change in the composition of the ambient air that indicates a fire development, it triggers an alarm to warn you. To do this, spexor compares the currently measured ambient values with previously recorded values and sounds the alarm when a certain threshold value is reached.


You will be informed via a push message on your smartphone and a red alarm screen will appear in the app. In addition, you can set whether spexor should warn you of the possible fire hazard at its installation location with an alarm sound and a light signal on the device itself.

Please note: spexor is not a certified fire gas detector!

Under no circumstances does it replace such a certified device; it can only help to detect a possible fire hazard.

You can test this function free of charge for 14 days without obligation and then add it via app for 19,99€/year.

Place spexor where you want to protect something

For fire gas monitoring, it is best to place spexor centrally in the room, on an elevated level such as a shelf or table. And in such a way that the sensors are not covered. The following applies: The higher, the better. This is because many fire gases rise to the top. Do not place spexor directly next to an open fire, fireplace or grill. The sensors are very sensitive and may react too quickly or be damaged.

Here is how you can place spexor for fire gas monitoring:

  • In closed rooms only
  • In the vicinity of possible sources of fire
  • On an elevated level, e.g. a high shelf. Smoke always moves upwards at first.

You shouldn’t put spexor here:

  • On the floor – smoke always moves upwards first.
  • Directly next to an open fire, e.g. a chimney.
  • Outside of indoor areas, e.g. when barbecuing in the garden.

Other useful spexor functions