Clifford & Snell Limited develops and manufactures electronic systems and devices for use in industrial and commercial environments, and public areas. It provides electronic sounders, and electronic combination sounders and strobes that are used in hazardous area applications, including the oil and gas, and petrochemical industries. The company also offers explosion proof and intrinsically safe systems. In addition, it provides beacons, door holders, mains adaptor units and circuit security key switches, and flash alarms. The company offers its products for fire and security markets worldwide, as well as online. The company was founded in 1929 and is based in London, United Kingdom. As of April 30, 2010, Clifford & Snell Limited operates as a subsidiary of R. Stahl AG.