Indotech Digital Milli Voltmeter – Which means it meters or measures AC voltage in Milli volt range. A Milli Volt is a thousandth of a volt. 1Volt is 1000 millivolt. A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit; digital milli voltmeters give a numerical display of milli voltage by use of an analog to digital converter.

Digital Milli Voltmeter use solid-state components and display values digitally. Typically, digital milli voltmeters (digital volt milli meters) can be used to locate excessive resistance that may indicate an open circuit or ground. They are also used to identify low milli voltage or milli voltage drops that may indicate a poor connection. The positive lead is connected to the circuits positive side and the negative lead is connected to the circuits ground. The digital milli voltmeters internal resistance is the impedance, which is usually expressed in ohms per volt. This amount is relatively high in order to prevent the device from drawing significant current and disturbing the operation of the circuit being tested. The sensitivity of the voltmeter determines the range of milli voltages that digital milli voltmeters can measure.