A support rack is shown as constructed of stainless steel angle members permanently welded together so as to comply with seismic requirements for nuclear power plant components. The four basic sides of the rack form a rectangle with the longer sides vertically extended. Permanent stainless steel plates extend between the vertical sides of the rack to add to the overall stability of the rack and form mounting bases. To some of the mounting bases is removably connected a second plate which bears signal transducers and transmitters. The rack is adapted for both floor and wall mounting at its permanent station.
