W-MMF addressable, wireless monitor module is a standard-sized module that supervises either a Style D (Class A) or Style B (Class B) circuit of dry-contact input devices. It can be used for a variety of applications, such as monitoring conventional pull stations. This module is designed to supervise a circuit of dry-contact input devices on the fire alarm control panel (FACP). The W-MMF communicates with the FACP through a wireless mesh network to the W-GATE wireless gateway. Note: Must be used with an ES-200X, ES-50X, MS-9600(UD)LS or MS-9200UDLS FACP.