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.
FDM-1 is a standard-sized dual monitor module used to monitor and supervise two independent two-wire Style B (Class B) dry-contact initiating device circuits (IDCs) at two separate, consecutive addres
ABS Music Horn with its divided frequency system, the L-PHP50A is the perfect accessory for superior music reproduction. Featuring a wide opening angle and sturdy ABS enclosure, this loudspeaker is co