Fluke 8808A/SU Digital Multimeter

The Fluke 8808A/SU is a 5.5-digit digital multimeter engineered for precision benchtop, field service, and system-level measurements. It delivers 0.015% basic DC voltage accuracy across a comprehensive measurement set: DC/AC voltage, DC/AC current, 2-wire and 4-wire resistance, frequency, continuity, diode test, and DC leakage current. The dual vacuum fluorescent display simultaneously shows two parameters, accelerating fault isolation and verification workflows. A patented 2×4 wire resistance technique enables true 4-wire measurements using only two leads. Specialized low-impedance circuitry—utilizing an operational amplifier and current-to-voltage conversion—eliminates burden voltage for accurate DC leakage current detection down to 100 nA resolution. Selectable measurement rates of 2.5, 20, and 100 samples/second optimize speed versus stability trade-offs. True RMS AC measurement ensures accuracy on distorted waveforms. Dedicated buttons provide quick access to common setups, while limit compare mode automates pass/fail testing. The /SU variant includes FlukeView Basic software and a USB-to-RS-232 interface adapter for remote data logging and analysis over RS-232.