Johnson Controls M300MJ


Module Flashscan Monitor

Availability: In Stock

Condition: New
Brand: Johnson Controls
Status: Active
SKU: 71652
Manufacturer Part #: M300MJ


Four different monitor modules are available for Johnson Controls’ intelligent control panels for a variety of applications. Monitor modules supervise a circuit of dry-contact input devices, such as conventional heat detectors and pull stations, or monitor and power a circuit of two-wire smoke detectors. M300MJ(A) is a standard-sized module (typically mounts to a 4″ [10.16 cm] square box) that supervises either a Style D (Class A) or Style B (Class B) circuit of dry-contact input devices.

Additional information

Weight 1.3 lbs



Production Status



  • Built-in type identification automatically identifies this device as a monitor module to the control panel.
  • Powered directly by two-wire SLC loop. No additional power required.
  • High noise (EMF/RFI) immunity.
  • SEMS screws with clamping plates for ease of wiring.
  • Direct-dial entry of address: 01 – 159 on FlashScan loops; 01 – 99 on CLIP loops.
  • LED flashes green during normal operation (this is a programmable option) and latches on steady red to indicate alarm.


Monitor Modules with FlashScan; M300MJ(A), M301MJ(A), M302MJ(A) & M300DJ(A)
Johnson Controls – Data Sheet


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