Analog Base 4 Inch The FAA440 Analog Bases come in two sizes (4 in. [10 cm] and 6 in. [16 cm]) and two models (Standard and ISO which has a builtin isolator).
They are used in combination with FAP-440 and FAH-440 analog addressable detectors to provide early fire warning for life safety and property protection.
Datasheet FAA-440-B4.
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