Searchlight Sensors, Inc., offers innovative and rugged optical sensing solutions to the environmental monitoring and industrial process monitoring needs.

Our products include TDLS (Tunable Diode Laser Spectroscopy)-based humidity sensor and CO2 (carbon dioxide) sensors.

Our services include custom instrument development for unique customer needs, contract R&D, and technical and product development consulting.


Founded by Dr. Daniel Oh in June, 2008, Searchlight Sensors brings over 20 years of R&D and product development experiences in laser-based spectroscopy.

Located in the heart of Orange County, California, staff at Searchlight Sensors enjoy mild weather and rich variety of cutural and outdoor activities.