Indicating Instruments:

The value of the electrical quantity is indicated by these instruments at the time when it is being measured. Pointers moving over the scale give the indication.
Ammeters, Voltmeters and wattmeters are the examples of these instruments.

Read more:

1. Definitions Used in Electrical Measuring Instruments
2. Absolute Instruments
3. Secondary Instruments
4. Integrating Instruments
5. Recording Instruments
6. Indicating Instruments