GPIB communication interface. 6-bit half digital resolution, 1350 readings per second and 15ppm basic dc accuracy with frequency / cycle test and 2 / 4-wire resistance test function. 1.000000 A. 325.0000 mA.
eBay
eBay
eBay
eBay
eBay
20 channel multiplexer with 2/4 wire type. We are located in Japan.
eBay
With various switch modules, it can scan at rates up to 350 channels per second, or open/close 80 channels in less than 0.1 second. Note: Unit specific features depend on installed options. GPIB and RS-232 interfaces.
eBay
Agilent HP 34970A Data Acquisition/Switch Unit. I'm not a specialist, so I don't know how I can test it.
eBay