Anritsu Corporation develops, manufactures, and sells measurement instruments and systems for various communications applications in Japan and internationally. It operates through Test and Measurement, Products Quality Assurance, and Others segments. The company's test and measurement products include bit error rate tester and sampling oscilloscope; mobile/wireless communications measuring instruments, such as base station analyzers, Bluetooth and WLAN testers, cable and antenna analyzers, channel emulators/fading simulators, conformance test systems, handset one box testers, land mobile radio products, passive intermodulation analyzers, shield boxes/chambers, and signaling testers; optical measuring instruments comprising OTDRs, optical loss test set/light source/optical power meter products, optical spectrum analyzers, video inspection probes, and accessories; RF microwave measuring instruments, such as peripheral equipment, and power meters and sensors; signal generators; and signal/spectrum analyzers, vector network analyzers, and transport and ethernet testing products. It also provides X-Ray inspection systems, checkweighers, automatic combination weighers, and metal detectors for the food, pharmaceutical, and cosmetics industries, as well as service assurance solutions; and designs and produces precision microwave components. In addition, the company offers optical sensing for industry and medicine sectors; optical devices for communication sector; and electron devices. Further, it engages in the environmental measurement, logistics, welfare services, real estate leasing, and other businesses. The company was founded in 1895 and is headquartered in Atsugi, Japan.