Keysight Technologies, a manufacturer of electronic measurement instruments and software headquartered in Santa Rosa, California, USA, was spun off from the former Agilent Technologies in 2014 (NYSE. (Agilent Technologies), which retains its chemical analysis, life sciences and diagnostics segments. Yestech's products include oscilloscopes, analyzers, signal generators, wireless device testers, PXI products, AXIe products, electronic design automation software, and more.