OPTEX GROUP Company, Limited, together with its subsidiaries, engages in planning, development, and sale of sensors in Japan, the United States, Europe, and 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, and fiber-optic intrusion detection systems; industrial door sensors; occupancy sensors and 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; vehicle detectors comprising microwave, infrared photo beam, and wireless magnetometer sensors; and people counting systems. The company was founded in 1979 and is headquartered in Otsu, Japan.