Fluke 45

Dual-Display Digital Multimeter, Discontinued – Dual 5-Digit Vacuum Fluorescent Display – Resolution to: 1 µV DC, 10 µV AC, 1 mO, 100 nA DC Current, 100 nA – AC Current – 0.02% basic DC Voltage accuracy – 0.05% basic DC Current accuracy – True RMS voltage and current measurement, incl. AC+DC – 1 MHz Frequency Counter, 10 mHz min resolution – dB with 21 reference impedances from 2 to 8,000 O – Audio power calculations from 2 O to 16 O – RS-232 interface included – GPIB interface and internal rechargeable battery pack available