Edwards 281B Category : EST/Edwards This is a 135F fixed temp and rate of rise heat detector. Brand EST/EdwardsModel 281BManufacturer EdwardsType Heat Detector
ADT ADT-PS Category : ADTPersonally, I think that the ADT logo on the head of this smoke is a bit ugly.
FCI MS-2 Category : FCIThis is an earlier generation MS-2. The metal piece on the inside which holds the handle open once it has...