Reed Switches and Magnetic Sensor Devices

About OKI Sensor Device Corporation
OKI Sensor Device Corporation (OSDC) was established as a specialized division of OKI Electric Industry, focused on reed switches and magnet-based sensor solutions. Headquartered in Japan, OSDC became known globally for its high-quality reed switches, proximity switches, and shock sensors. With proprietary technologies such as advanced contact surface treatment, automated sealing processes, and precision resistance testing, OKI Sensor Device earned a reputation for innovation, reliability, and market leadership in Japan.
In 2017, Standex Electronics acquired the OKI Sensor Device Corporation business from OKI Electric Industry, strengthening our global reed switch portfolio and expanding our manufacturing presence in Asia. Following the acquisition, the business was renamed Standex Electronics Japan Corporation, continuing to support customers with reed switch and magnetic sensing technologies.
Address: 1088-7, Otsu-machi, Kofu-shi, Yamanashi 400-0055 Japan
Phone Number: +81.42.698.0026
Acquisition by Standex Electronics
Standex Electronics announced the acquisition of OKI Sensor Device Corporation in 2017, marking a major expansion of our global reed switch operations and Asian footprint. Read the official acquisition press release.

This acquisition reinforced Standex Electronics’ leadership in reed switch and magnetic sensing technologies by integrating OKI Sensor Device’s advanced production capabilities, proprietary know-how, and long-standing customer relationships. Today, OKI Sensor Device continues as part of Standex Electronics Japan Corporation, delivering high-quality reed switches and sensor devices as part of the Standex Detect portfolio. Explore our reed technology solutions or connect with our team for engineering support.
Products & Capabilities
OKI Sensor Device’s product portfolio is now part of Standex Electronics’ broader offerings:
Why Customers Chose OKI Sensor Device
Reed Switch Leadership
OSDC developed one of the industry’s most comprehensive reed switch product lines, spanning from low-voltage signal applications to high-voltage power lines. Proprietary technologies such as contact deactivation treatment and flux scanning measurement systems ensured superior reliability and performance.
High Reliability
Customers trusted OKI Sensor Device products in critical applications where accuracy and durability were required. Rigorous testing and automated sealing processes ensured consistent operation, even under demanding environmental conditions.
Engineering Innovation
By investing in advanced manufacturing equipment and R&D, OSDC introduced new designs that improved sensitivity, precision, and mechanical robustness. These innovations helped customers achieve reliable sensing and switching in automotive, industrial, and consumer applications.
Global Reputation
Although based in Japan, OSDC served customers worldwide with a reputation for consistent quality and reliability. Its leadership in reed technology made it a respected supplier to major OEMs across multiple industries.
Certifications & Advantages
- ISO 9001 & ISO 14001 Certified
- Proprietary Technologies for Reed Switch Manufacturing
- Automated Sealing & Precision Testing Processes
- Extensive Portfolio of Reed, Proximity, and Shock Sensors
- Proven Track Record in Automotive, Industrial, and Consumer Markets
- Now Backed by Standex Electronics’ Global Supply Chain
Markets Served
OKI Sensor Device’s sensing technologies continue to support industries worldwide, now through Standex Electronics:



