Simplex 2098-9442 This is a 200F fixed temperature heat detector. Brand SimplexModel 2098-9442Manufacturer UnknownType Heat Detector
Cerberus Pyrotronics EH-24S Category : Cerberus PyrotronicsThis unit is missing the large capacitor off of its circuit board.
Simplex 4904-9137 Category : SimplexThis is, in fact, a Simplex 4904-9137. It’s just missing its housing.