Which statement about moisture meters and infrared cameras is true?

• A. They can be used to locate hidden leaks
• B. They measure water quality
• C. They only measure air humidity
• D. They are used to test electrical continuity

Answer: (A)

Moisture meters and infrared cameras are investigative tools used to find hidden moisture problems and leaks inside buildings. A moisture meter directly measures how damp a material is—think drywall, wood, or concrete—so elevated readings point to areas where water has penetrated or is lingering. An infrared camera, on the other hand, visualizes surface temperature differences; damp or recently damp areas often show up as cooler spots because moisture changes how heat is conducted and evaporates, helping you spot where a leak might be lurking behind walls or ceilings. Together, they guide you to the likely leak locations and help prioritize repairs without invasive removal. They don’t measure water quality, they don’t just measure air humidity, and they aren’t used to test electrical continuity.