What is one significant advantage of out-of-circuit meters?

Out-of-circuit meters are designed to measure electrical parameters like voltage, current, and resistance without being connected to the circuit under test. One significant advantage of such meters is their mobility. They can be easily transported and utilized in various locations or environments where testing is necessary, allowing technicians to perform measurements in different settings without needing to disrupt the circuit itself. This mobility makes out-of-circuit meters particularly useful for fieldwork and troubleshooting in diverse situations.

In contrast, while their portability is a key feature, the other choices do not highlight this benefit effectively. For example, while accuracy might be associated with some types of specialized testing equipment, out-of-circuit meters might not inherently provide more accurate readings than in-circuit meters, depending on the specific context and equipment. Similarly, while cost can vary, mobility is a standout characteristic that is consistently beneficial across most applications of out-of-circuit meters, often making them a preferred tool in practical scenarios.