Siemens AW-1 This device is simply a button, nothing very elaborate. Brand SiemensModel AW-1Manufacturer SiemensType Switch
ADT ADT-PS Category : ADTPersonally, I think that the ADT logo on the head of this smoke is a bit ugly.
Simplex 477-669 Category : SimplexOddly enough, the model number on this particular smoke doesn’t fit the typical pattern for Simplex devices.