Fluke I310S AC/DC Current Probe, +/-100mA Resolution, 300V AC/ DC Voltage, 450A DC, 300A AC rms Current Current probe is based on hall effect technology Use in measurement of both DC and AC current It may be used in conjunction with oscilloscopes and other suitable recording instruments for accurate non-intrusive current measurement Output Sensitivity: 10 mV/A (40 A) to 1 mV/A (400 A) Load impedance: greater than 10 k ohms and less than or equal to 100 pF