OPTEX GROUP Company, Limited, together with its subsidiaries, develops, manufactures, and sells security sensors and automatic door sensors in Japan and internationally. It operates through Sensing Solution Business, Industrial Automation Business, and Electronic Manufacturing Service Business segments. The company offers water quality measuring instruments, customer traffic counting systems, and electronic components; factory automation sensors, LED lighting equipment for image processing, industrial PCs, and automation systems. It also provides contract manufacturing service of electronic equipment. The company was founded in 1979 and is headquartered in Otsu, Japan.