The Franklin Chef 149452 TS Safety Valve Magnet is a component used in Franklin Chef commercial gas cooking equipment, likely ranges or ovens.The "TS" likely stands for "thermostatic safety" or a similar safety system. This magnet is part of the gas safety valve mechanism, which prevents gas flow if the pilot light is extinguished. https://partsfe.ca/149452-franklin-chef-body-magnet-head-as