2025 Rare Simplex 4903 Fire Alarm Test

Fire Alarm Test 172 This is the fourth video from this school district and features a very cool simplex system. This building was built in 1994 and has a simplex 4002 fire alarm system with simplex 4903 strobe plates. However they installed this system very well with rare simplex 4903-9104 ceiling mount strobe plates mounted on the ceilings in the hallways. System Specs: Panel: Simplex 4002-8001 Signals: Simplex 4903-9101 with 2901-9806 Simplex 4903-9104 with 2901-9806 Simplex rebranded mini horns Simplex rebranded mini horn strobes Pulls: Simplex 4251-20 Simplex 2099-9754 Smokes: Simplex 2098-9201 Heats: Simplex fixed heats in kitchen Annunciators: Simplex 4602-9101 in main entrance Simplex 4602-9102 in main office (unseen) Chapters: 00:00 Intro 00:23 Full Building Alarm 1 01:03 Full Building Alarm 2 09:26 Resetting Simplex 4002 FACP 09:48 Audible Walktest (Pull Stations) 13:11 Full Building Alarm 3 (Outdoor Horns) 17:22 Outro self promo: Join the discord:   / discord