This series of thermometers has been designed as an addition to the standard range of thermometers in order to meet the special requirements of the food, biotechnology, pharmaceutical, paint and varnish industries. The Model 74 gas actuated thermometer is ideally suited for the high standard requirements of sanitary applications. Futhermore the SA-11 is 3-A marked based on a third party verification for con formance to the standard 74-03. Stem and case are made of stainless steel. The surface of the wetted parts is polished. A wide variety of process connections is available to ensure the optimal adaptation to many different process requirements. The stem is free of dead space.