Johnson Controls M302MJ Addressable Monitor Module
$200.00
Johnson Controls M302MJ Addressable Monitor Module is a standard-sized module that monitors and supervises compatible two-wire, 24 volt, smoke detectors on a Style D (Class A) or Style B (Class B) circuit.
Mounts directly to a standard 4" (10.16 cm) square, 2.125" (5.398 cm) deep, electrical box. They may also be mounted to the SMB500 surface-mount box.
The M302MJ can be used to replace M502MJ modules in existing systems.
