0 an electronic device that measures voltage, current, and resistance
The multimeter was used in conjunction with two selector switches to obtain temperatures at different locations on the brass plates of the experimental slot.
A second multimeter in series with the discharge gap was used to indicate the current.
Some instruments combine the functions of a digital multimeter with the oscilloscope.
Modern digital multimeters may have an embedded computer, which provides a wealth of convenience features.
A digital multimeter samples the quantity being measured at a particular time and displays it.
A typical multimeter would include basic features such as the ability to measure voltage, current, and resistance.
For example, a four-digit multimeter would automatically select an appropriate range to display 1.234 instead of 0.012, or overloading.
These are now so ubiquitous that they have largely replaced non-amplified multimeters except in the least expensive price ranges.