The Cal Test CT4432 High-Voltage Oscilloscope Probe safely measures voltage levels up to 10 kV. Because an oscilloscope has limits to the input voltage it can accept, measuring higher voltages may sometimes require the use of an attenuating high-voltage probe. With an improved dual-resistor design, the CT4432 can accurately and safely step-down higher voltages to an acceptable level. It offers 1000x attenuation, and it features a compensation range of 5 pF to 50 pF for a wide range of oscilloscope capacitance matching.

The Cal Test CT4432 High-Voltage divider probe can be used with analog or digital oscilloscopes that have an input resistance of 1 MΩ (±1%) and nominal input capacitance between 5 and 50 pF. The CT4432 is a 1000:1 divider which extends the voltage measurement capability to 7 kV ACrms. This probe is compatible with oscilloscopes (of 1 MΩ input) from all major manufacturers.