![[DEFUNCT] Fire Alarm Test #111 | Simplex 4020](https://i.ytimg.com/vi/drhSUrmRE5U/mqdefault.jpg)
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Last Updated: September 29, 2026
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Shoutout to for setting up the programmer. This is a short clip of a fire alarm 0:00 - Intro 0:40 - Demo Setup 2:27 - Walk Well look at this it's going to be a To: Vintage Vibratone: youtube.com/channel/UCH6b9VDff9hVFjjwMX0_P0A After years and years of owning these big Alarms: 2903-9101/2901-9838 horn strobes 4903-9105/4901-9805 horn strobes and a couple TrueAlerts and a 4903-9252.
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