A&D Holon Holdings Co., Ltd. engages in the research and development, as well as manufacturing and distribution, of electronic measuring instruments, industrial scales, electronic balances, electronic medical instruments, testing machines and other applied electronic instruments. It operates through the Measuring and Weighing Equipment, and Medical and Health Equipment segments. The Measuring and Weighing Equipment segment includes measurement, control and simulation systems, sound and vibration analysis equipment, analog-digital and digital-analog converter, testing machines, environmental measurement equipment, electronic balance, platform scale, indicator, counting scale, and load cells. The Medical and Health Equipment segment includes household digital sphygmomanometer, blood pressure monitoring equipment, fully automatic blood pressure meters, precision scales, and ultrasonic inhalers. The company was founded on May 6, 1977 and is headquartered in Saitama, Japan.