The Tektronix P6139B is a 500 MHz high-bandwidth, high-impedance 10X passive voltage probe designed for precision signal measurement in advanced electronic testing and analysis. It provides an input resistance of 10 MΩ and utilizes the TekProbe I interface for seamless integration with compatible oscilloscopes. Featuring a compact probe head and sharp tip, the P6139B allows accurate probing of dense circuit layouts and fine-pitch components. Its direct BNC connection supports oscilloscopes with 1 MΩ inputs, while the intelligent TekProbe communication interface automatically scales and adjusts measurement units on the oscilloscope display for consistent accuracy. Across North America, Europe, Asia, and worldwide, probe configurations and oscilloscope compatibility may possibly vary according to regional testing standards and instrumentation requirements.