0 an electronic device that measures voltage, current, and resistance --
Both have options for calibrating the output with a multimeter, for increased accuracy.
The sensitivity of an analog multimeter is given in units of ohms per volt.
A digital multimeter displays the quantity measured as a number, which eliminates parallax errors.
Standard analog multimeters measure with typically 3% accuracy, though instruments of higher accuracy are made.
In a digital multimeter the signal under test is converted to a voltage and an amplifier with electronically controlled gain preconditions the signal.
Its products included amplifiers, radios, multimeters and other items generally sold in kit form to hi-fi enthusiasts and other electronics hobbyists.
Relative accuracy is the error of the measurement compared to the device used to calibrate the multimeter.
These are now so ubiquitous that they have largely replaced non-amplified multimeters except in the least expensive price ranges.
