The Agilent Technologies 4339B High-Resistance Meter is a precision DC resistance measurement instrument designed for ultra-high impedance testing in calibration labs and advanced materials research. As part of Agilent/Keysight's high-resistance portfolio, the 4339B enables stable, repeatable measurements of very large resistance values and is commonly used for insulation resistance testing and high-impedance component characterization. Documentation and user guidance from Keysight confirm its role as a dedicated high-resistance meter with accompanying operation manuals and product sheets.
