Simplex 2903 Fire Alarm Light Replica

The 2903 was a fire alarm light plate manufactured by Simplex during the 1980s. Nowadays, they are quite rare, and they aren't sold too frequently, and they are quite pricy. Now, a new alternative is available. You can now 3D print your very own Simplex 2903!

[DISCLAIMER: Please credit this unit as a "SafetyNet 2903" or give proper credit. Thanks!]

--- (released on 8/2/23) --- Gen1
--- (update 9/27/25: redesigned lens assembly, fixed screw holes, measurements, and added grid to back) --- Gen2