Clamp meter
Hall-effect clamp meter · DC amps · 0.01–400 A · drag its jaw over one wire (only one conductor, or the currents cancel)

Try it on the benchThe lab drops it on an empty bench and opens its datasheet card.
Ratings and limits
| Range | 0.01–400 A AC / DC |
|---|---|
| Method | Hall-effect sensor in the jaw |
How to use it
Measures current without breaking the circuit. Clamp one conductor only.