Digital Multimeters- An RVer's Best Friend

Although either a digital or analog meter can be used for most work, each has it's advantages and disadvantages. An analog meter gives a quicker look at voltage, polarity and even resistance. A digital meter gives the illusion of greater accuracy. I say illusion because a cheap digital meter can be just as inaccurate as a cheap analog meter. A dirty voltage source is more easily tested with an analog meter. With either type of meter, it's good to use a precision voltage source such as a new battery for an occasional calibration check. I carry both kinds of meter.