Fenwal Controls of Japan Ltd. engages in the development, sale, design, construction, and maintenance of thermal control systems. It operates through the following segments: Safety Security Protection (SSP), Thermal, Medical, and Printed Wiring Board Assembly (PWBA). The SSP segment provides residential fire alarm, fire extinguishing system, explosion suppressor, smoke detection system, sprinkler, and maintenance inspection services. The Thermal segment offers hot plate for semiconductor manufacturing equipment, temperature sensors, controllers, and thermo-switches. The Medical segment deals with the design and manufacture of kidney dialysis machinery and medical equipment. The PWBA segment handles the design and assembly of printed circuit boards. The company was founded on May 24, 1961 and is headquartered in Tokyo, Japan.