Teledyne Gas & Flame Detection began after World War II with the Davis Emergency Equipment Company’s portable gas detector line including the Vapotestor. Scott Safety, then a part of Tyco, acquired Davis in 1971, and expanded its offering with fixed gas detection products in 1975. In 1999 Scott Safety acquired Bacharach and EIT products and moved into the EIT factory in Exton, Pennsylvania in the U.S. This further expanded the companies portable and fixed gas detector offerings and brought about the highly accurate Rock Solid line of electrochemical sensors for fixed gas detection. Today as Teledyne Gas & Flame Detection located in Englewood, Colorado the company continues with its Rock Solid sensors in new industry leading designs providing best in class detection of hazardous gases.