Simplex 4255-1 Category : Simplex This is a moderately old heat detector. Brand SimplexModel 4255-1Manufacturer ChemtronicsType Heat Detector
Unknown Test/Ready Switch Category : OtherI received this switch with a lot of various alarm devices. I’m not sure who it’s made by, what its...
System Sensor 2451 Category : System SensorI’m not quite sure what the purpose of the “extravagant” base on this smoke detector is for.
National Time D900-PHOTO Category : National TimeThis same type of detector, which is manufactured by Apollo, is used by several other companies, such as Gamewell-FCI.
