The B501AUS is a direct replacement for the Z131A Detector...
The 4B Universal Base contains no electronics and is suitable...
The 850EMT is used to program the address into MX...
The B200SR is a direct replacement for the Z132A Sounder...
The T131A-Mk2 heat detector is a state-of-the art dual thermistor...
Use with MX1, MX4428, 4100ESi (will require MX Loop Card).
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