Digital voltmeters are instruments that measure voltage or voltage drop in a circuit.

Digital LED displays are segmented or dot matrix displays allowing for numeric only and alphanumeric character representation

Temperature instruments use contact or noncontact methods to measure temperature.

Digital thermometers are portable temperature sensing devices that have permanent probes and a digital display

Digital video recorders record and store video camera output in digital form on disk

Analog voltmeters are instruments that measure voltage or voltage drop in a circuit.

Digital-to-analog converters (DAC) transform a digital number into a corresponding analog voltage or current