Wheelock MT-24-LSM Category : Wheelock I believe that this MT is newer than the Wheelock MT4-24LSM, yet older than the Wheelock MT-24MCW. Brand WheelockModel MT-24-LSMManufacturer WheelockType Alarm (Horn/Strobe)
Honeywell S465B Category : HoneywellThis is essentially a slightly modified-looking version of the Honyewell S464A with a two-stage option.