What is essential to check on a fire extinguisher during a monthly inspection?

The focus during a monthly inspection of a fire extinguisher must be on the pressure gauge, physical condition, and accessibility. The pressure gauge is crucial as it indicates whether the extinguisher is fully charged and ready for use. The physical condition, including any signs of damage or corrosion, is essential to ensure the extinguisher functions properly in an emergency. Accessibility is equally important; the extinguisher should be in a location that is easily reachable in case of a fire, ensuring that it can be quickly utilized when needed.

Other options contain elements that may not be relevant for a monthly inspection. While weight and the manufacturer’s date can be useful for overall maintenance or lifespan considerations, they are not as critical to check on a regular basis. Similarly, knowing the specific type of extinguisher, its age, or user manual can help with general knowledge, but they do not directly impact the immediate readiness and functionality of the extinguisher during monthly checks. Brand and refill history also play a less crucial role in the immediate inspection process compared to the essential components outlined in the correct response.