National Time D900-TEMP This device is manufactured by Apollo. Brand National TimeModel D900-TEMPManufacturer ApolloType Heat Detector
Grinnell IXA-RMS Category : GrinnellThis unit was taken off of a TFX-400 system at Brigham Young University.
EST G1WA-VMA Category : EST/EdwardsAlthough this alarm has grille for a horn on it, it is actually only a remote strobe.
EST 882-2B Category : EST/EdwardsThis unit has an electronic horn rather than an electromechanical mechanism.