OPTEX GROUP Company, Limited, together with its subsidiaries, develops, manufactures, and sells security and automatic door products in Japan, the United States, Europe, and rest of Asia. It operates through Sensing Solution Business, Industrial Automation Business, and Electronic Manufacturing Service Business segments. The company offers intruder detection and sensors and systems, including photoelectric, PIR, redwall/redscan, GENIO series, video verification, and fiber-optic intrusion detection systems; industrial door sensors; occupancy sensors and wireless rocker switches; access control, anti-tailgating, and reverse detection systems; and environmental sensors, comprising transmitters, turbidity, suspended solids, oxygen, conductivity, pH, and oxidation-reduction potential sensors. It provides dry contract converter and analog converter IoT wireless units; automation door sensors for sliding and swing doors; vehicle detection sensors and systems for gates, parking occupancy, car counting, car warning, license plate recognition, and truck occupancy applications; and vehicle detectors comprising microwave, infrared photo beam, and wireless magnetometer sensors. In addition, the company offers LED lightning and industrial computer products, as well as provides electronic equipment contract production services. The company was founded in 1979 and is headquartered in Otsu, Japan.