Johnson Controls M300RJ Addressable Relay Control Module Handr Its compact and efficient design

Its compact and efficient design allows easy mounting on standard electrical boxes

it stores macros and settings in internal flash memory for long-term reliability

and secure housing solution for fire alarm system components

and an optional self-test function to validate system health

The black color blends well with most door frames

Johnson Controls M300RJ Addressable Relay Control Module Handr Its compact and efficient designThe Johnson Controls M300RJ Addressable Relay Control Module is a reliable and efficient device designed to provide relay control functionality within an addressable fire alarm system. It enables seamless integration of electrical loads, such as fans, dampers, or door closers, with the fire alarm system, allowing for automated activation during emergencies. With its compact design, the M300RJ offers easy installation and versatile application in