Siemens U-MHST-MCS Category : Siemens I believe that this alarm has the ability to produce multiple tones. Brand SiemensModel U-MHST-MCSManufacturer SiemensType Alarm (Horn/Strobe)
Edwards 899B-01 Category : EST/EdwardsThis strobe cover would fit on an alarm such as the Edwards 802-2B.
Simplex 4904-9053 Category : SimplexI accidentally bought this particular unit not realizing I already had one. Oh well, happens.
