The Fire-Lite MMF-300 is a standard-sized monitor module that monitors a zone of 4-wire smoke detetors, manual pull stations, water flow devices, and other open dry-contact alarm initiation devices.
The MMF-300 supervises either a Class A or Class B circuit of a dry-contact input device. The unit is equipped with LED indicators and high-noise immunity for enhanced performance.
The MMF-300 mounts easily to a 4″ square box.
I56-3653-002.pdf (firelite.com)