For natural gas emergencies, what equipment do truck companies carry alongside a multiple-gas meter?

In natural gas emergencies, truck companies carry specialized equipment to ensure safety and facilitate effective response. The correct choice of equipment in this context is a TIF (Thermal Imaging Camera). This device is crucial for identifying potential gas leaks or hotspots that may not be visible to the naked eye. The camera helps responders detect elevated temperatures or unusual activities that can indicate the presence of gas, allowing them to assess the situation more accurately and take the necessary actions to mitigate risks.

While other options like a fire axe, ventilation fan, and water hose are important tools for various firefighting and rescue operations, they do not directly address the specific needs when managing natural gas emergencies. A fire axe may be used for access or forcible entry, but it does not assist in detecting gas. A ventilation fan is primarily for clearing smoke in structural fires rather than dealing with gas; and a water hose, while essential for extinguishing fires, is not effective against gas leaks. Thus, the TIF stands out as the vital equipment for the unique challenges posed by natural gas incidents.