Wheelock RSSWP-2475W This alarm has a weathered strobe, unlike my other Wheelock RSSWP-2475. Brand WheelockModel RSSWP-2475WManufacturer WheelockType Alarm (Strobe)
EST 882-2B Category : EST/EdwardsThis unit has an electronic horn rather than an electromechanical mechanism.
Therm-L-Stat DI-135 Category : OtherThis heat detector is very small compared to a lot of the other ones that I have.