The ZS Series high-impedance active probes from Teledyne LeCroy are designed for high-fidelity signal measurements up to 4 GHz. With high input resistance (1 MΩ) and low input capacitance (0.6–0.9 pF), they minimize circuit loading, preserving signal integrity across a wide frequency range. These probes feature ±8 V dynamic range, ±12 V offset capability, and come with a variety of tips and grounding options to handle diverse probing challenges. Their compact design integrates seamlessly with oscilloscopes, ensuring ease of use and accurate performance. Models are tailored for oscilloscopes ranging from 1 GHz to 4 GHz bandwidth.