The P6021 current probe converts an alternating current waveform to a voltage that can be displayed and measured on an oscilloscope display. The probe provides accurate current measurements over a wide range of frequencies and allows you to measure current without breaking the circuit. The P6021 probe is compatible with general purpose oscilloscopes having a 1 MΩ input impedance. The P6021 probe comes with a passive termination that matches oscilloscope and probe impedance, optimizes the probe performance, and provides two sensitivity settings. In the standard configuration, the P6021 probe comes with a 5-foot cable and termination. The P6009 is a low-input-capacitance, high-voltage passive probe with a signal attenuation of 100X. It is designed for use with wide band, real-time oscilloscopes, and may be used with any plug-in unit or oscilloscope having a 1 megohm input resistance and an input capacitance of 15 to 47 pF. The probe is available with a standard BNC output connector or with a special BNC connector for readout oscilloscopes. The readout version is recommended for use only with a TEKTRONIX 7000-Series Mainframe (with readout) or the TEKTRONIX 485 Oscilloscope. When used with these instruments, the special connector on the probe causes the oscilloscope readout to switch, automatically correcting for attenuation of the probe. The P6009 consists of a probe-body assembly, a 9-foot cable, and a compensating-box assembly with a BNC connector. The compensating box houses adjustments for optimizing the high-frequency response of the probe.