A&D HOLON Holdings Company, Limited provides measurement technologies and products. The company's principal products include measurement, control, and simulation systems; FFT, sound, and vibration analyzers; digital ultrasonic flaw detectors; digital ultrasonic thickness meters; material testing machines; A/D D/A converters for semiconductor manufacturing equipment; electron guns; electronic balances; digital platform scales; weighing indicators; weighing controllers; various industrial weighing equipment; and load cells. Its principal products also comprise weighing and measurement data processing systems; medical digital blood pressure monitors; various scales for medical use; home digital blood pressure meters; digital home scales; ultrasonic inhalers; photomask CD-SEM products; photomask defect review SEM products; and roller mold measurement tools. In addition, the company engages in business and asset management; and real estate management. The company was incorporated in 1977 and is based in Tokyo, Japan.