The group's principal activities are to design, produce, import and sell quartz crystals, oscillators, frequency control and ultrasonic transducer devices. The operations are conducted through its subsidiary valpey-fisher corporation. These frequency control include quartz crystals and oscillators which are used as integral components in electronic circuitry to assure precise timing and frequency reference and are used in the field of telecommunication, computer and computer peripheral equipment. The ultrasonic transducer devices are sold to the ndt (nondestructive testing), industrial, research and medical markets. Applications include flaw detection, precision thickness gauging, corrosion inspection, weld inspection and various research applications. In, 2003 the company acquired certain assets of mf electronics corporation
