A precision instruments and engineered products manufacturer operating through two main segments: Test and Measurement (offering oscilloscopes, probes, and semiconductor test systems under brands like Tektronix and Keithley Instruments) and Sensors and Safety Systems (providing power grid monitoring, safety systems for defense and space applications, and sensing solutions under brands including Qualitrol and Gems Sensors). The company serves semiconductor, electronics, communications, utilities, defense, space, and industrial manufacturing industries globally.