FMM-1 is a standard-sized module (typically mounts to a 4" [10.16 cm] square box) that supervises either a Class A (Style D) or Class B (Style B) circuit of dry-contact input devices.
Mount it on a ceiling or wall - the L-PBM20A offers you the flexibility for any indoor or outdoor requirement. Ideal for applications like galleries and shopping arcades, this speaker complies with mu