System Sensor P2475 This is a SpectrAlert classic with a fixed candelas settings of 75. Brand System SensorModel P2475Manufacturer System SensorType Alarm (Horn/Strobe)
H. R. Kirkland Indicator Category : OtherThis unit bears no model number, only the brand “H. R. Kirkland,” a company that still manufactures fire alarm system...
Wheelock RSSWP-2475W Category : WheelockThis alarm has a weathered strobe, unlike my other Wheelock RSSWP-2475.
Gaylord NC-1357A Category : GaylordI like this unit so much in part because there’s no branding on the front.