Wheelock RSS-24MCC This is a white, ceiling mount RSS. Brand WheelockModel RSS-24MCCManufacturer WheelockType Alarm (Strobe)
Wheelock RSSWP-2475W Category : WheelockThis alarm has a weathered strobe, unlike my other Wheelock RSSWP-2475.
EST 882-2B Category : EST/EdwardsThis unit has an electronic horn rather than an electromechanical mechanism.