The National Instruments 783129-01, also known as the PXIe-4080, is a state-of-the-art, six-and-a-half-digit PXI digital multimeter designed to deliver exceptional measurement accuracy for both industrial and laboratory environments. By integrating the functionalities of a high-resolution digital multimeter (DMM) with a digitizer, this versatile instrument excels in precise AC and DC voltage and current measurements, along with 2- or 4-wire resistance assessments, frequency and period measurements, and diode testing. With a remarkably low DC voltage input bias current of less than 30 pA at 23 °C and high ADC linearity of 0.5 ppm of reading plus 1 ppm of range, the PXIe-4080 achieves outstanding performance in its DMM mode. Its effective common-mode rejection ratio (CMRR) surpasses 140 dB with a 100 ms aperture, aided by high-order DC noise rejection capabilities exceeding 170 dB, ensuring superior accuracy in challenging, noisy environments. The device supports both AC and DC coupling options and features a parallel input impedance of 1 MΩ ± 2% with 150 pF for AC voltage measurements. It maintains a maximum DC voltage component of 250 V and accommodates a broad voltage range from ±100 mV to ±300 V, as well as current measurements ranging from ±20 mA to ±1 A. With a typical CMRR exceeding 70 dB from DC to 60 Hz, the multimeter's diode testing function ranges up to 10 V with test currents of 1 µA, 10 µA, 100 µA, and 1 mA. The PXIe-4080 is capable of achieving sample rates up to 1.8 MS/s, providing standalone digitizing functionality for waveform capture, alongside a flexible record length that allows for extensive data acquisition depending on available memory. This combination of high-speed data recording and comprehensive measurement capabilities makes the 783129-01 an essential tool for high-performance applications.