The 34401A is a high-performance, bench-grade digital multimeter featuring a 6½-digit resolution and multifunction capability, ideal for precision measurements in laboratory, industrial, and automated test environments. It offers exceptional accuracy—approximately 0.0035 % for DC voltage and 0.06 % for true‑RMS AC voltage—and supports a broad array of measurement functions, including DC/AC volts, DC/AC current, 2‑ and 4‑wire resistance, frequency/period, diode testing, and continuity checks