Which common tool helps in inspecting wood for pest damage?

A moisture meter is essential for inspecting wood for pest damage because many wood-destroying pests, like termites and certain fungi, thrive in environments with high moisture content. By measuring the moisture levels in wood, pest control professionals can identify areas that are conducive to pest activity and therefore more likely to have damage. A higher moisture reading may indicate a risk for infestation, signaling the need for further inspection or treatment.

The other tools listed serve different purposes. An endoscope may allow for visual inspection in hard-to-reach areas but does not measure moisture, which is critical for understanding pest-related wood conditions. A caliper is primarily used for measuring the dimensions of objects and does not provide information about pest damage or moisture content. A thermometer can help assess temperature conditions but is not directly related to evaluating pest presence or wood integrity. Hence, the moisture meter stands out as the most relevant tool in this context.