| Specification | Description |
| Internal Resistance / Burden | The resistance of the meter itself. An ideal ammeter has zero resistance; practical ammeters have a very low resistance (e.g., a few milliohms) to minimize voltage drop and impact on the circuit. |
| Overload Protection | The maximum current the meter can withstand without damage (e.g., $1.2$ times rated current continuously, $10$ times for $5$ seconds). |
| Safety Rating | Indicated by CAT (Category) ratings ($\text{CAT II, CAT III, CAT IV}$) and voltage levels ($\text{V}$), specifying the level of protection against transient voltages. |







