What is a good indicator of the quality of an analog meter?

The ohms per volt rating is a key indicator of the quality of an analog meter because it provides insight into the meter's sensitivity and accuracy in measuring voltage. This rating indicates how many ohms of resistance are created by the meter for each volt of input voltage. A higher ohms per volt rating means that the meter has higher internal resistance and is less likely to load down the circuit being tested, which results in more accurate measurements, particularly in high-resistance circuits.

A meter with a high ohms per volt rating, such as 20,000 ohms per volt, will provide far more accurate readings in comparison to one with a low rating. It allows the user to measure voltages without significantly affecting the circuit, making it crucial for applications where precision is necessary.

In contrast, while the other options might relate to aspects of an analog meter's functionality, they do not directly measure or indicate the quality of the meter as effectively as the ohms per volt rating does. For instance, voltage range shows the extent of voltages that can be measured, but it does not reflect the accuracy or sensitivity of those measurements. Battery life pertains to the usability of battery-powered meters but does not affect measurement quality. Display precision relates to the clarity and