Electronic Test Equipment - Companies in this industry manufacture equipment used to test electrical properties and signals. Major products include instruments such as frequency counters, logic analyzers, multimeters, oscilloscopes, voltmeters, and waveform synthesizers. Other products include instruments designed for a specific application, such as communications testing equipment and instruments to test semiconductors. These instruments are used to test electrical equipment and to measure electrical properties. Major companies include Danaher, Keysight Technologies, National Instruments, and Teradyne (all based in the US), along with Anritsu (Japan), Rohde & Schwarz (Germany), Spirent Communications (UK), and Yokogawa Electric (Japan).
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