The MultiRAE Pro is intended for which atmosphere?

• A. Flammable atmosphere
• B. Normal atmosphere
• C. Oxygen-deficient atmosphere
• D. Mixed atmosphere

Answer: (B)

Gas detectors are designed around the atmosphere in which they are meant to operate safely. The MultiRAE Pro is a general-purpose, portable monitor intended for use in normal workplace air—ambient atmosphere with standard oxygen content. It continuously samples the air and measures multiple gases, providing alarms as needed to protect workers in typical environments.

If you expect to work in a flammable atmosphere or in one that is oxygen-deficient, you’d use equipment specifically rated for those conditions (different certifications or configurations). The MultiRAE Pro can detect oxygen levels too, but its standard intended context is normal atmosphere. This makes normal atmosphere the best match.