Summary

Hello again. This is a remake of the Simplex 2975-9145 fire alarm backbox.

It is designed for the Simplex 2903 series light and strobe plates and the 2902 life alarms.

These are made according to the original dimensions: 20.32 x 13.46 x 7.11 cm.

It has 3 1.7cm holes at the top, bottom and back for cutting.

Tested on: SafetyNet 2903 light panel.

This is for hobby use only and not for real systems.