Portable leak detector: how it works and why it is useful

In the world of  safety at work , prevention is everything. In industrial environments, chemical plants, construction sites or confined spaces, a gas leak can turn into a serious danger for  workers' health  and for the surrounding environment. This is why the use of a  portable gas leak detector  is not only recommended, but often required by law.

These compact yet high-tech devices are designed to provide a  continuous and real-time protection , allowing operators to detect the presence of  toxic gases flammable  or  oxygen deficiency before they can cause irreparable damage.

Types of gas detectors and their uses

There are mainly two categories of portable gas detectors:

  • Single gas detectors : designed to monitor a single type of gas, such as  carbon monoxide  (CO),  hydrogen sulfide  (H₂S) or  oxygen  (O₂), like the model  Be safe SG . They are ideal for environments where the specific risk is known.
  • Multigas detectors : capable of  detect several gases simultaneously . An example is  Be Safe MG , which can monitor  up to four gases simultaneously . These devices are perfect for complex and variable environments, such as sewers, tanks or industrial sites such as in the petrochemical, mining or naval sectors.

For further information:  How to protect yourself from H2S gas?

How does a portable gas detector work?

A portable detector is equipped with  electrochemical, catalytic or infrared sensors , which constantly analyze the surrounding air. When the device detects a gas concentration above preset safety limits, it emits an audible, visual and vibrating alarm signal.

These instruments are battery powered and often equipped with a digital screen, data logger function (for data recording) and wireless connectivity for remote monitoring.

The most common sensors are :

  • Oxygen (O₂): detects oxygen deficiencies or excesses, essential in confined environments.
  • Flammable gases (LEL): detects the risk of explosions.
  • Toxic gases (CO, H₂S, NH₃, Cl₂): indicates levels dangerous to health.

For further information:  The most dangerous gases for humans

Where and when is a portable detector used?

The use of a portable detector is crucial in many situations:

  • Access to  confined spaces  (tanks, silos, tunnels)
  • You work in  power plants  o  petrochemical plants
  • Maintenance of  gas systems  or industrial
  • Operations in  sewerage and purification sectors
  • Interventions in  areas at risk of explosion (ATEX)

Regulations and certifications to consider

A good detector must be  certified according to current regulations , as  ATEX  for environments at risk of explosion, and  IECEx . Furthermore, it is important that it is easily calibrated and maintainable to ensure always reliable performance.

Using a portable gas leak detector is not just a  security measure : it is an investment in  workers' health , on  operational continuity  and on  compliance with regulations . For those who work on a construction site, in an industrial plant or in the service sector, always have a device like the  Be Safe MG multigas detector , or the models  single gas Be Safe SG , can make the difference between a safe environment and an avoidable risk.