The Fire-lite MS-4012 is a 4 zone conventional fire alarm panel from the early 90s. It’s somewhat like the MS-4, except less features, no sync, and the NACs are 12VDC, not 24VDC. It does come with a TM module which is used to clear the system trouble on the panel. The only con is there is no key lock on the panel as well as a few knockouts in the back are already punched off. For the “System Trouble” light to clear, the TM module must be connected to the panel for the light to clear. Overall, everything works as it should.
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