Description for Siemens 540-984

Siemens flush-mount room sensors are designed for applications in which a standard room temperature sensor is not aesthetically acceptable or is a security issue. Siemens metal flush-mount sensors have a temperature sensing element secured to the back of a blank stainless steel switch cover plate, covered with closed cell foam insulation to improve thermal isolation and enhance sensing accuracy. The plastic flush-mount sensors are designed with the sensing element mounted in a box behind the cover plate. The aluminum cover on the sensor subassembly is also thermally isolated from the cover plate by an air gap.