Edwards 281B This is a 135F fixed temp and rate of rise heat detector. Brand EST/EdwardsModel 281BManufacturer EdwardsType Heat Detector
Cerberus Pyrotronics EH-24S Category : Cerberus PyrotronicsThis unit is missing the large capacitor off of its circuit board.
Simplex 2901-9840 Category : SimplexBesides its appearance, this horn is just like the more common Simplex 2901-9838.
