NCT instruments CP2100 dual DC to 10MHz current probe
The NCT instruments CP2100 is a dual channel current probe with a sensitivity of 100mV/A (or 50mV/A when terminated with 50 Ohm) and a bandwidth from DC to 10MHz. Each channel is fully isolated so two independent currents can be measured at different voltage levels. A current probe is an invaluable piece of equipment when designing (switching) power supplies, power amplifiers, etc. Often the current flowing through a circuit or component offers a great insight in how a circuit works (or why it misbehaves).