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
The EN54-24-certified L-VHP15A from Honeywell consistently delivers intelligible voice and superior sound reproduction. It features a low-profile yet stylish design as well as high-strength, UV-protec