Johnson Controls M301MJ Addressable Mini Monitor Module

Johnson Controls M301MJ Addressable Mini Monitor Module

$89.00
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Johnson Controls M301MJ is a miniature monitor module that supervises a Style B (Class B) circuit of dry-contact input devices. The M301MJ is intended for use in intelligent, two-wire systems where the individual address of each module is selected using rotary switches. It provides a two-wire initiating device circuit for normally-open-contact fire alarm and security devices.

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