A Home Depot was built in 1994 and had a Fire-Lite MS-9200 system. Alarms consisted of being System Sensor ADA MASSes spread apart quite far. Even places like bathrooms and offices had these horn/strobes inside them. No smoke detectors had been mounted, and pulls are Fire-Lite BG-10s.
In 2002, due to repeated pull station difficulties, all BG-10s were replaced with BG-12s, except for a couple that actually worked.
In 2006, System Sensor 2400 smoke detectors are installed on the ceiling, but are noticeably far apart. Also, a few weatherproof SpectrAlerts got installed on the outside, a few in the back, one at the entrance, and one in the gardening section.
In 2009, the store did some construction and created a large wall on the far left side. That wall received a Siemens U-MMT horn/strobe.
In 2014, the system was ditched for a brand new Siemens MXL system. All MASSes, the U-MMT, pull stations, and smoke detectors were taken out, but the outdoor SpectrAlerts stayed. New NAs were Siemens NS ceiling horn/strobes and Siemens ST ceiling remote strobes, both being white and high-candela models. Bathrooms and small offices got Siemens ZH red wall strobes, with the rest of the employees areas getting red NS ceiling horn/strobes or ST strobes depending on the room size. Despite the SpectrAlerts staying, the one at the entrance of the store and the one in the gardening section were disconnected and had white Siemens AS weatherproof ceiling mounts “above” those SpectrAlerts. Smoke detectors are Siemens OP121s and pulls are Siemens MSM-Ks
In 2017, the bathrooms were extended, causing the Siemens ZH strobes to incorrectly be moved from the wall to the ceiling because of a mirror placement where the alarm used to be.
The system remains. TBH stores are easier because you don’t have to specify where all alarms are at all times.