Gas detection systems

Gas detection systems detect toxic, flammable, inert or refrigerant gases in an environment. These are complex solutions consisting of multiple technologies that interact and cooperate with one another to ensure the highest level of security.

Gas detection shall be implemented in all settings which foresee the use or risk of gas leaks, including:

  • Industry
  • Hospitality and accomodations
  • Car parking and storage areas
  • Oil & gas.

Each type of gas requires specific technologies. This is why it is always essential to start with a accurate analysis and design, to identify the peculiarities of each substance, the content and the different methods of detection.

Flammable gas

A type of gas whose presence could cause a fire or an explosion (simultaneous presence of oxidizer, fuel, source of ignition).

Toxic gas

A category which includes all gases that may pose a risk to poisoning living beings, regardless of the duration of exposure.

Inert gas

Gases that could pose a danger in the air. Excessive concentration may cause a lack of oxygen and, as a result, become the source of asphyxiation risk for people.

Refrigerant gas

Gases used in air conditioning, refrigeration and in the cold chain in general. Refrigerant gases pose a hazard because they can be flammable and toxic.

EN 60079-29-1

This standard defines the performance of the components in a flammable gas and oxygen detection system.

The ATEX Directive 2014/34/EU

The ATEX Directive 2014/34/EU provides for the classification of products in Groups and Categories according to their use. Group I conserns mines. Group II covers surface products. The defined categories are 1, 2 and 3.


The European standard EN 50402 (SIL) defines the requirements for system reliability (Safety Integrity Level). SIL levels range from 1 to 4.

Decree 81/2008

The employer must conduct risk assessment and maintain the safety of workers.

EN 60079-29-2

A standard defining the selection, use, installation and maintenance of flammable gases and oxygen detectors.

The ATEX Directive 99/92/CE

The ATEX Directive 99/92/EC, based on the probability of the presence of explosive atmospheres, defines the minimum requirements for the health and safety of workplaces, by dividing them into zones 0, 1 and 2 and specifying the criteria for choosing products within them.

Fixed and portable gas detectors

Rilevatore fisso di gas Sensitron per la rilevazione gas

Fixed gas systems

Fixed gas detection systems suitable for installation in hazardous environments

Rilevatore portatile indossabile di gas Sensitron-Crowcon per la rilevazione gas

Portable gas detectors

Portable and wearable gas detection systems

Logo Sensitron

Sensitron: trusted partner for gas detection

Since 1988, Sensitron has realised complete solutions for the flammable, toxic, inert or refrigerant gases. The italian company joined the Halma Group in 2021 and it is ISO 9001:2015 certified for the quality systems management, ensuring high quality standards. The Sensitron growth strategy has always put in first place its products compliance with current standards. Some of the existing standards are the ATEX for detectors and control panels and the SIL and IECEX certificate.

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