The AM503S Current Probe System is the most versatile current measurement system available. Since the probes incorporate both a transformer and a Hall Effect device, broadband AC/DC current can be measured simultaneously. Depending on the probe used, current from DC to 100 MHz and up to 700 A can be measured by clipping the split-core probes around the conductor. The AM503S is truly a system, consisting of an AM503B Current Probe Amplifier, a TM502A two-wide Power Module and an A6302 Current Probe. Options enable you to add or substitute an A6312 Current Probe, A6303 Current Probe or delete the A6302 Current Probe. If you require any of the XL current probes (longer length), then use Option 09, which deletes the A6302.