Wheelock MT4-115-R Category : Wheelock This MT runs off of 115 VAC. It has the older MT screw holes. Brand WheelockModel MT4-115-RManufacturer WheelockType Alarm (Horn)
Honeywell SC71501302 Category : HoneywellThis alarm’s backbox is almost a part of it. For example, the alarm’s label is on the backbox.
Edwards 276B-1320 Category : EST/EdwardsThis is essentially the single-action, non-addressable version of the EST SIGA-278.
Honeywell S465B Category : HoneywellThis is essentially a slightly modified-looking version of the Honyewell S464A with a two-stage option.
