Simplex 4255-1 Category : Simplex This is a moderately old heat detector. Brand SimplexModel 4255-1Manufacturer ChemtronicsType Heat Detector
Simplex 4903-9236 Category : SimplexThis unit has an electronic horn, as opposed to the electromechanical horn or speaker found in other rectangular Simplex notification...
Cerberus Pyrotronics MSI-20B Category : Cerberus PyrotronicsThis is the addressable version of the Pyrotronics MS-501.
Gaylord NC-1357A Category : GaylordI like this unit so much in part because there’s no branding on the front.
