The 34970A/34972A data acquisition/switching unit series is the industry's leading measurement and conversion system, integrated with a 6 1/2-bit digital multimeter and 8 switch and control modules, which can measure and convert 11 different input signals, including temperature, DC/AC voltage, 2-wire and 4-wire resistance, frequency and period, DC/AC current. It can be easily connected to a PC via 1 Gbit LAN, USB (34972A), GPIB and RS-232 interface (34970A), supports a graphical Web interface and USB storage, downloads configuration and records data, and contains BenchLink Data Logger software to configure, control tests, display measurement results and collect data for further analysis.